diff -u b/core/modules/block/templates/block.html.twig b/core/modules/block/templates/block.html.twig
--- b/core/modules/block/templates/block.html.twig
+++ b/core/modules/block/templates/block.html.twig
@@ -10,7 +10,6 @@
  *   - label: The configured label for the block.
  *   - label_display: The display settings for the label.
  *   - provider: The module or other provider that provided this block plugin.
- *   - cache: The cache settings.
  *   - Block plugin specific settings will also be stored here.
  * - content: The content of this block.
  * - attributes: array of HTML attributes populated by modules, intended to
diff -u b/core/modules/system/templates/block--system-menu-block.html.twig b/core/modules/system/templates/block--system-menu-block.html.twig
--- b/core/modules/system/templates/block--system-menu-block.html.twig
+++ b/core/modules/system/templates/block--system-menu-block.html.twig
@@ -10,7 +10,6 @@
  *   - label: The configured label for the block.
  *   - label_display: The display settings for the label.
  *   - provider: The module or other provider that provided this block plugin.
- *   - cache: The cache settings.
  *   - Block plugin specific settings will also be stored here.
  * - content: The content of this block.
  * - attributes: HTML attributes for the containing element.
diff -u b/core/themes/bartik/templates/block.html.twig b/core/themes/bartik/templates/block.html.twig
--- b/core/themes/bartik/templates/block.html.twig
+++ b/core/themes/bartik/templates/block.html.twig
@@ -10,7 +10,6 @@
  *   - label: The configured label for the block.
  *   - label_display: The display settings for the label.
  *   - provider: The module or other provider that provided this block plugin.
- *   - cache: The cache settings.
  *   - Block plugin specific settings will also be stored here.
  * - content: The content of this block.
  * - attributes: array of HTML attributes populated by modules, intended to
diff -u b/core/themes/classy/templates/block/block--search-form-block.html.twig b/core/themes/classy/templates/block/block--search-form-block.html.twig
--- b/core/themes/classy/templates/block/block--search-form-block.html.twig
+++ b/core/themes/classy/templates/block/block--search-form-block.html.twig
@@ -10,7 +10,6 @@
  *   - label: The configured label for the block.
  *   - label_display: The display settings for the label.
  *   - provider: The module or other provider that provided this block plugin.
- *   - cache: The cache settings.
  *   - Block plugin specific settings will also be stored here.
  * - content: The content of this block.
  * - attributes: A list HTML attributes populated by modules, intended to
diff -u b/core/themes/classy/templates/block/block--system-menu-block.html.twig b/core/themes/classy/templates/block/block--system-menu-block.html.twig
--- b/core/themes/classy/templates/block/block--system-menu-block.html.twig
+++ b/core/themes/classy/templates/block/block--system-menu-block.html.twig
@@ -10,7 +10,6 @@
  *   - label: The configured label for the block.
  *   - label_display: The display settings for the label.
  *   - provider: The module or other provider that provided this block plugin.
- *   - cache: The cache settings.
  *   - Block plugin specific settings will also be stored here.
  * - content: The content of this block.
  * - attributes: HTML attributes for the containing element.
diff -u b/core/themes/classy/templates/block/block.html.twig b/core/themes/classy/templates/block/block.html.twig
--- b/core/themes/classy/templates/block/block.html.twig
+++ b/core/themes/classy/templates/block/block.html.twig
@@ -10,7 +10,6 @@
  *   - label: The configured label for the block.
  *   - label_display: The display settings for the label.
  *   - provider: The module or other provider that provided this block plugin.
- *   - cache: The cache settings.
  *   - Block plugin specific settings will also be stored here.
  * - content: The content of this block.
  * - attributes: array of HTML attributes populated by modules, intended to