diff --git a/core/config/schema/core.data_types.schema.yml b/core/config/schema/core.data_types.schema.yml
index 069ff09..e4e13df 100644
--- a/core/config/schema/core.data_types.schema.yml
+++ b/core/config/schema/core.data_types.schema.yml
@@ -250,6 +250,11 @@ config_entity:
     dependencies:
       type: config_dependencies
       label: 'Dependencies'
+    third_party_settings:
+      type: sequence
+      label: 'Third party settings'
+      sequence:
+        - type: fixme.third_party.[%key]
 
 block_settings:
   type: mapping
@@ -376,11 +381,6 @@ field_config_base:
       label: 'Default value callback'
     settings:
       type: field.[%parent.field_type].field_settings
-    third_party_settings:
-      type: sequence
-      label: 'Third party settings'
-      sequence:
-        - type: field_config.third_party.[%key]
     field_type:
       type: string
       label: 'Field type'
diff --git a/core/config/schema/core.entity.data_types.schema.yml b/core/config/schema/core.entity.data_types.schema.yml
index f0b87ee..3935f62 100644
--- a/core/config/schema/core.entity.data_types.schema.yml
+++ b/core/config/schema/core.entity.data_types.schema.yml
@@ -10,11 +10,6 @@ entity_field_view_display_base:
     weight:
       type: integer
       label: 'Weight'
-    third_party_settings:
-      type: sequence
-      label: 'Third party settings'
-      sequence:
-        - type: entity_view_display.third_party.[%key]
     label:
       type: string
       label: 'Label setting machine name'
@@ -29,8 +24,3 @@ entity_field_form_display_base:
     weight:
       type: integer
       label: 'Weight'
-    third_party_settings:
-      type: sequence
-      label: 'Third party settings'
-      sequence:
-        - type: entity_form_display.third_party.[%key]
diff --git a/core/config/schema/core.entity.schema.yml b/core/config/schema/core.entity.schema.yml
index 63a35eb..0ec7901 100644
--- a/core/config/schema/core.entity.schema.yml
+++ b/core/config/schema/core.entity.schema.yml
@@ -25,9 +25,6 @@ core.entity_view_mode.*.*:
     langcode:
       type: string
       label: 'Default language'
-    dependencies:
-      type: config_dependencies
-      label: 'Dependencies'
 
 core.entity_form_mode.*.*:
   type: config_entity
@@ -77,11 +74,6 @@ core.entity_view_display.*.*.*:
       sequence:
         - type: boolean
           label: 'Value'
-    third_party_settings:
-      type: sequence
-      label: 'Third party settings'
-      sequence:
-        - type: entity_view_display.third_party.[%key]
 
 # Overview configuration information for form mode displays.
 core.entity_form_display.*.*.*:
@@ -114,11 +106,6 @@ core.entity_form_display.*.*.*:
       sequence:
         - type: boolean
           label: 'Component'
-    third_party_settings:
-      type: sequence
-      label: 'Third party settings'
-      sequence:
-        - type: entity_form_display.third_party.[%key]
 
 # Default schema for entity display field with undefined type.
 entity_view_display.field.*:
diff --git a/core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php b/core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php
index 627bb83..3679cb9 100644
--- a/core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php
+++ b/core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php
@@ -7,12 +7,12 @@
 
 namespace Drupal\Core\Config\Entity;
 
-use Drupal\Component\Plugin\ConfigurablePluginInterface;
 use Drupal\Component\Utility\String;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Config\Schema\SchemaIncompleteException;
 use Drupal\Core\Entity\Entity;
 use Drupal\Core\Config\ConfigDuplicateUUIDException;
+use Drupal\Core\Config\Entity\ThirdPartySettingsTrait;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Entity\EntityWithPluginCollectionInterface;
 use Drupal\Core\Language\LanguageInterface;
@@ -29,6 +29,8 @@
     addDependency as addDependencyTrait;
   }
 
+  use ThirdPartySettingsTrait;
+
   /**
    * The original ID of the configuration entity.
    *
diff --git a/core/lib/Drupal/Core/Entity/EntityDisplayBase.php b/core/lib/Drupal/Core/Entity/EntityDisplayBase.php
index 251bb00..8fcd902 100644
--- a/core/lib/Drupal/Core/Entity/EntityDisplayBase.php
+++ b/core/lib/Drupal/Core/Entity/EntityDisplayBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Entity;
 
 use Drupal\Core\Config\Entity\ConfigEntityBase;
-use Drupal\Core\Config\Entity\ThirdPartySettingsTrait;
 use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\Core\Entity\Display\EntityDisplayInterface;
 use Drupal\field\Entity\FieldConfig;
@@ -19,8 +18,6 @@
  */
 abstract class EntityDisplayBase extends ConfigEntityBase implements EntityDisplayInterface {
 
-  use ThirdPartySettingsTrait;
-
   /**
    * Unique ID for the config entity.
    *
diff --git a/core/lib/Drupal/Core/Field/FieldConfigBase.php b/core/lib/Drupal/Core/Field/FieldConfigBase.php
index 05fc94b..d0341cc 100644
--- a/core/lib/Drupal/Core/Field/FieldConfigBase.php
+++ b/core/lib/Drupal/Core/Field/FieldConfigBase.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Field;
 
 use Drupal\Core\Config\Entity\ConfigEntityBase;
-use Drupal\Core\Config\Entity\ThirdPartySettingsTrait;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Entity\FieldableEntityInterface;
 use Drupal\Core\Field\TypedData\FieldItemDataDefinition;
@@ -18,8 +17,6 @@
  */
 abstract class FieldConfigBase extends ConfigEntityBase implements FieldConfigInterface {
 
-  use ThirdPartySettingsTrait;
-
   /**
    * The field ID.
    *
diff --git a/core/modules/contact/config/schema/contact.schema.yml b/core/modules/contact/config/schema/contact.schema.yml
index 011ae37..7ebb6f4 100644
--- a/core/modules/contact/config/schema/contact.schema.yml
+++ b/core/modules/contact/config/schema/contact.schema.yml
@@ -22,11 +22,6 @@ contact.form.*:
     weight:
       type: integer
       label: 'Weight'
-    third_party_settings:
-      type: sequence
-      label: 'Third party settings'
-      sequence:
-        - type: contact_form.third_party.[%key]
 
 contact.settings:
   type: mapping
diff --git a/core/modules/contact/src/Entity/ContactForm.php b/core/modules/contact/src/Entity/ContactForm.php
index 2dd7ce3..2331a7c 100644
--- a/core/modules/contact/src/Entity/ContactForm.php
+++ b/core/modules/contact/src/Entity/ContactForm.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Config\Entity\ConfigEntityBundleBase;
 use Drupal\contact\ContactFormInterface;
-use Drupal\Core\Config\Entity\ThirdPartySettingsTrait;
 
 /**
  * Defines the contact form entity.
@@ -41,8 +40,6 @@
  */
 class ContactForm extends ConfigEntityBundleBase implements ContactFormInterface {
 
-  use ThirdPartySettingsTrait;
-
   /**
    * The form ID.
    *
diff --git a/core/modules/image/config/schema/image.schema.yml b/core/modules/image/config/schema/image.schema.yml
index f0db0d5..35cb060 100644
--- a/core/modules/image/config/schema/image.schema.yml
+++ b/core/modules/image/config/schema/image.schema.yml
@@ -22,11 +22,6 @@ image.style.*:
               type: integer
             uuid:
               type: string
-    third_party_settings:
-      type: sequence
-      label: 'Third party settings'
-      sequence:
-        - type: image_style.third_party.[%key]
 
 image.effect.image_crop:
   type: image_size
diff --git a/core/modules/image/src/Entity/ImageStyle.php b/core/modules/image/src/Entity/ImageStyle.php
index 32e5d3b..a293a41 100644
--- a/core/modules/image/src/Entity/ImageStyle.php
+++ b/core/modules/image/src/Entity/ImageStyle.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Config\Entity\ConfigEntityBase;
-use Drupal\Core\Config\Entity\ThirdPartySettingsTrait;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Entity\EntityWithPluginCollectionInterface;
 use Drupal\Core\Routing\RequestHelper;
@@ -52,8 +51,6 @@
  */
 class ImageStyle extends ConfigEntityBase implements ImageStyleInterface, EntityWithPluginCollectionInterface {
 
-  use ThirdPartySettingsTrait;
-
   /**
    * The name of the image style to use as replacement upon delete.
    *
diff --git a/core/modules/node/config/schema/node.schema.yml b/core/modules/node/config/schema/node.schema.yml
index 0680b57..abb9b50 100644
--- a/core/modules/node/config/schema/node.schema.yml
+++ b/core/modules/node/config/schema/node.schema.yml
@@ -36,11 +36,6 @@ node.type.*:
     display_submitted:
       type: boolean
       label: 'Display setting for author and date Submitted by post information'
-    third_party_settings:
-      type: sequence
-      label: 'Third party settings'
-      sequence:
-        - type: node_type.third_party.[%key]
 
 # Plugin \Drupal\node\Plugin\Search\NodeSearch
 search.plugin.node_search:
diff --git a/core/modules/node/src/Entity/NodeType.php b/core/modules/node/src/Entity/NodeType.php
index 73e1202..5b4f735 100644
--- a/core/modules/node/src/Entity/NodeType.php
+++ b/core/modules/node/src/Entity/NodeType.php
@@ -8,7 +8,6 @@
 namespace Drupal\node\Entity;
 
 use Drupal\Core\Config\Entity\ConfigEntityBundleBase;
-use Drupal\Core\Config\Entity\ThirdPartySettingsTrait;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\node\NodeTypeInterface;
 
@@ -41,7 +40,6 @@
  * )
  */
 class NodeType extends ConfigEntityBundleBase implements NodeTypeInterface {
-  use ThirdPartySettingsTrait;
 
   /**
    * The machine name of this node type.
diff --git a/core/modules/taxonomy/config/schema/taxonomy.schema.yml b/core/modules/taxonomy/config/schema/taxonomy.schema.yml
index 579f673..04d8f5a 100644
--- a/core/modules/taxonomy/config/schema/taxonomy.schema.yml
+++ b/core/modules/taxonomy/config/schema/taxonomy.schema.yml
@@ -33,11 +33,6 @@ taxonomy.vocabulary.*:
     weight:
       type: integer
       label: 'Weight'
-    third_party_settings:
-      type: sequence
-      label: 'Third party settings'
-      sequence:
-        - type: taxonomy.vocabulary.third_party.[%key]
 
 field.taxonomy_term_reference.storage_settings:
   type: base_entity_reference_field_settings
diff --git a/core/modules/taxonomy/src/Entity/Vocabulary.php b/core/modules/taxonomy/src/Entity/Vocabulary.php
index e650551..b6decd5 100644
--- a/core/modules/taxonomy/src/Entity/Vocabulary.php
+++ b/core/modules/taxonomy/src/Entity/Vocabulary.php
@@ -8,7 +8,6 @@
 namespace Drupal\taxonomy\Entity;
 
 use Drupal\Core\Config\Entity\ConfigEntityBundleBase;
-use Drupal\Core\Config\Entity\ThirdPartySettingsTrait;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\taxonomy\VocabularyInterface;
 
@@ -45,7 +44,6 @@
  * )
  */
 class Vocabulary extends ConfigEntityBundleBase implements VocabularyInterface {
-  use ThirdPartySettingsTrait;
 
   /**
    * The taxonomy vocabulary ID.
diff --git a/core/tests/Drupal/Tests/Core/Config/Entity/Fixtures/ConfigEntityBaseWithThirdPartySettings.php b/core/tests/Drupal/Tests/Core/Config/Entity/Fixtures/ConfigEntityBaseWithThirdPartySettings.php
index 6834e63..100999c 100644
--- a/core/tests/Drupal/Tests/Core/Config/Entity/Fixtures/ConfigEntityBaseWithThirdPartySettings.php
+++ b/core/tests/Drupal/Tests/Core/Config/Entity/Fixtures/ConfigEntityBaseWithThirdPartySettings.php
@@ -9,7 +9,6 @@
 
 use Drupal\Core\Config\Entity\ConfigEntityBase;
 use Drupal\Core\Config\Entity\ThirdPartySettingsInterface;
-use Drupal\Core\Config\Entity\ThirdPartySettingsTrait;
 
 /**
  * Enables testing of dependency calculation.
@@ -18,6 +17,5 @@
  * @see \Drupal\Core\Config\Entity\ConfigEntityBase::calculateDependencies()
  */
 abstract class ConfigEntityBaseWithThirdPartySettings extends ConfigEntityBase implements ThirdPartySettingsInterface {
-  use ThirdPartySettingsTrait;
 
 }