13 files declare their use of EntityDeleteForm in Zircon Profile 8

ActionDeleteForm.php in core/modules/action/src/Form/ActionDeleteForm.php

Contains \Drupal\action\Form\ActionDeleteForm.

BlockContentTypeDeleteForm.php in core/modules/block_content/src/Form/BlockContentTypeDeleteForm.php

Contains \Drupal\block_content\Form\BlockContentTypeDeleteForm.

BlockDeleteForm.php in core/modules/block/src/Form/BlockDeleteForm.php

Contains \Drupal\block\Form\BlockDeleteForm.

CommentTypeDeleteForm.php in core/modules/comment/src/Form/CommentTypeDeleteForm.php

Contains \Drupal\comment\Form\CommentTypeDeleteForm.

DateFormatDeleteForm.php in core/modules/system/src/Form/DateFormatDeleteForm.php

Contains \Drupal\system\Form\DateFormatDeleteForm.

EntityDisplayModeDeleteForm.php in core/modules/field_ui/src/Form/EntityDisplayModeDeleteForm.php

Contains \Drupal\field_ui\Form\EntityDisplayModeDeleteForm.

FieldConfigDeleteForm.php in core/modules/field_ui/src/Form/FieldConfigDeleteForm.php

Contains \Drupal\field_ui\Form\FieldConfigDeleteForm.

ImageStyleDeleteForm.php in core/modules/image/src/Form/ImageStyleDeleteForm.php

Contains \Drupal\image\Form\ImageStyleDeleteForm.

LanguageDeleteForm.php in core/modules/language/src/Form/LanguageDeleteForm.php

Contains \Drupal\language\Form\LanguageDeleteForm.

MenuDeleteForm.php in core/modules/menu_ui/src/Form/MenuDeleteForm.php

Contains \Drupal\menu_ui\Form\MenuDeleteForm.

NodeTypeDeleteConfirm.php in core/modules/node/src/Form/NodeTypeDeleteConfirm.php

Contains \Drupal\node\Form\NodeTypeDeleteConfirm.

ShortcutSetDeleteForm.php in core/modules/shortcut/src/Form/ShortcutSetDeleteForm.php

Contains \Drupal\shortcut\Form\ShortcutSetDeleteForm.

VocabularyDeleteForm.php in core/modules/taxonomy/src/Form/VocabularyDeleteForm.php

Contains \Drupal\taxonomy\Form\VocabularyDeleteForm.