diff --git a/core/modules/field/field.crud.inc b/core/modules/field/field.crud.inc
index bbd0d45..36356e0 100644
--- a/core/modules/field/field.crud.inc
+++ b/core/modules/field/field.crud.inc
@@ -25,89 +25,6 @@
  */
 
 /**
- * Creates a field.
- *
- * This function does not bind the field to any bundle; use
- * field_create_instance() for that.
- *
- * @param array $field
- *   A field definition. The field_name and type properties are required.
- *   Other properties, if omitted, will be given the following default values:
- *   - cardinality: 1
- *   - locked: FALSE
- *   - indexes: the field-type indexes, specified by the field type's
- *     hook_field_schema(). The indexes specified in $field are added
- *     to those default indexes. It is possible to override the
- *     definition of a field-type index by providing an index with the
- *     same name, or to remove it by redefining it as an empty array
- *     of columns. Overriding field-type indexes should be done
- *     carefully, for it might seriously affect the site's performance.
- *   - settings: each omitted setting is given the default value defined in
- *     hook_field_info().
- *   - storage:
- *     - type: the storage backend specified in the
- *       'field.settings.default_storage' configuration.
- *     - settings: each omitted setting is given the default value specified in
- *       hook_field_storage_info().
- *
- * @return \Drupal\field\Plugin\Core\Entity\Field
- *   The field entity.
- *
- * @throws Drupal\field\FieldException
- *
- * @deprecated as of Drupal 8.0. Use
- *   entity_create('field_entity', $definition)->save().
- *
- * See: @link field Field API data structures @endlink.
- */
-function field_create_field(array $field) {
-  $field = entity_create('field_entity', $field);
-  $field->save();
-  return $field;
-}
-
-/**
- * Updates a field.
- *
- * Any module may forbid any update for any reason. For example, the
- * field's storage module might forbid an update if it would change
- * the storage schema while data for the field exists. A field type
- * module might forbid an update if it would change existing data's
- * semantics, or if there are external dependencies on field settings
- * that cannot be updated.
- *
- * @param mixed $field
- *   Either the \Drupal\field\Plugin\Core\Entity\Field object to update, or a
- *   field array structure. If the latter, $field['field_name'] must provided;
- *   it identifies the field that will be updated to match this structure. Any
- *   other properties of the field that are not specified in $field will be left
- *   unchanged, so it is not necessary to pass in a fully populated $field
- *   structure.
- *
- * @throws Drupal\field\FieldException
- *
- * @deprecated as of Drupal 8.0. Use $field->save().
- *
- * @see field_create_field()
- */
-function field_update_field($field) {
-  // Module developers can still pass in an array of properties.
-  if (is_array($field)) {
-    $field_loaded = entity_load('field_entity', $field['field_name']);
-    if (empty($field_loaded)) {
-      throw new FieldException('Attempt to update a non-existent field.');
-    }
-    // Merge incoming values.
-    foreach ($field as $key => $value) {
-      $field_loaded[$key] = $value;
-    }
-    $field = $field_loaded;
-  }
-
-  $field->save();
-}
-
-/**
  * Reads a single field record directly from the database.
  *
  * Generally, you should use the field_info_field() instead.
@@ -162,103 +79,6 @@ function field_read_fields($conditions = array(), $include_additional = array())
 }
 
 /**
- * Marks a field and its instances and data for deletion.
- *
- * @param $field_name
- *   The field name to delete.
- *
- * @deprecated as of Drupal 8.0. Use $field->delete().
- */
-function field_delete_field($field_name) {
-  if ($field = field_info_field($field_name)) {
-    $field->delete();
-  }
-}
-
-/**
- * Creates an instance of a field, binding it to a bundle.
- *
- * @param array $instance
- *   A field instance definition array. The field_name, entity_type and
- *   bundle properties are required. Other properties, if omitted,
- *   will be given the following default values:
- *   - label: the field name
- *   - description: empty string
- *   - required: FALSE
- *   - default_value_function: empty string
- *   - settings: each omitted setting is given the default value specified in
- *     hook_field_info().
- *   - widget:
- *     - type: the default widget specified in hook_field_info().
- *     - settings: each omitted setting is given the default value specified in
- *       hook_field_widget_info().
- *
- * @return \Drupal\field\Plugin\Core\Entity\FieldInstance
- *   The field instance entity.
- *
- * @throws Drupal\field\FieldException
- *
- * @deprecated as of Drupal 8.0. Use
- *   entity_create('field_instance', $definition)->save().
- *
- * See: @link field Field API data structures @endlink.
- */
-function field_create_instance(array $instance) {
-  $instance = entity_create('field_instance', $instance);
-  $instance->save();
-  return $instance;
-}
-
-/**
- * Updates an instance of a field.
- *
- * @param mixed $instance
- *   Either the \Drupal\field\Plugin\Core\Entity\FieldInstance to update, or an
- *   associative array representing an instance structure. If the latter, the
- *   required keys and values are:
- *   - entity_type: The type of the entity the field is attached to.
- *   - bundle: The bundle this field belongs to.
- *   - field_name: The name of an existing field.
- *   The other array elements represent properties of the instance, and all
- *   properties must be specified or their default values will be used (except
- *   internal-use properties, which are assigned automatically). To avoid losing
- *   the previously stored properties of the instance when making a change,
- *   first load the instance with field_info_instance(), then override the
- *   values you want to override, and finally save using this function. Example:
- *   @code
- *   // Fetch an instance info array.
- *   $instance_info = field_info_instance($entity_type, $field_name, $bundle_name);
- *   // Change a single property in the instance definition.
- *   $instance_info['definition']['required'] = TRUE;
- *   // Write the changed definition back.
- *   field_update_instance($instance_info['definition']);
- *   @endcode
- *
- * @throws Drupal\field\FieldException
- *
- * @deprecated as of Drupal 8.0. Use $instance->save().
- *
- * @see field_info_instance()
- * @see field_create_instance()
- */
-function field_update_instance($instance) {
-  // Module developers can still pass in an array of properties.
-  if (is_array($instance)) {
-    $instance_loaded = entity_load('field_instance', $instance['entity_type'] . '.' . $instance['bundle'] . '.' . $instance['field_name']);
-    if (empty($instance_loaded)) {
-      throw new FieldException('Attempt to update a non-existent instance.');
-    }
-    // Merge incoming values.
-    foreach ($instance as $key => $value) {
-      $instance_loaded[$key] = $value;
-    }
-    $instance = $instance_loaded;
-  }
-
-  $instance->save();
-}
-
-/**
  * Reads a single instance record from the database.
  *
  * Generally, you should use field_info_instance() instead, as it provides
@@ -317,22 +137,6 @@ function field_read_instances($conditions = array(), $include_additional = array
 }
 
 /**
- * Marks a field instance and its data for deletion.
- *
- * @param \Drupal\field\Plugin\Core\Entity\FieldInstance $instance
- *   The field instance.
- * @param $field_cleanup
- *   If TRUE, the field will be deleted as well if its last instance is being
- *   deleted. If FALSE, it is the caller's responsibility to handle the case of
- *   fields left without instances. Defaults to TRUE.
- *
- * @deprecated as of Drupal 8.0. Use $instance->delete().
- */
-function field_delete_instance(FieldInstance $instance, $field_cleanup = TRUE) {
-  $instance->delete($field_cleanup);
-}
-
-/**
  * @} End of "defgroup field_crud".
  */