Issue #2177971 by chr.fritsch, Berdir: Remove bundle_keys annotation and related methods.

core/lib/Drupal/Core/Entity/EntityType.php

core/lib/Drupal/Core/Entity/EntityTypeInterface.php

...stom_block/lib/Drupal/custom_block/Entity/CustomBlock.php

core/modules/comment/lib/Drupal/comment/Entity/Comment.php

...ntroller/ConfigTranslationFieldInstanceListController.php

core/modules/contact/lib/Drupal/contact/Entity/Message.php

core/modules/field/field.module

...odules/menu_link/lib/Drupal/menu_link/Entity/MenuLink.php

core/modules/node/lib/Drupal/node/Entity/Node.php

core/modules/taxonomy/lib/Drupal/taxonomy/Entity/Term.php

...lib/Drupal/views/Plugin/views/wizard/WizardPluginBase.php