Issue #2067017 by damiankloip: Remove usage of DRUPAL_CORE_COMPATIBILITY/VERSION constants.

core/includes/bootstrap.inc

core/includes/common.inc

core/includes/install.core.inc

core/includes/update.inc

core/lib/Drupal.php

core/lib/Drupal/Core/Extension/ModuleHandler.php

core/lib/Drupal/Core/SystemListingInfo.php

core/modules/block/block.module

core/modules/book/book.module

core/modules/ckeditor/ckeditor.module

core/modules/color/color.module

core/modules/comment/comment.module

core/modules/content_translation/content_translation.module

core/modules/contextual/contextual.module

core/modules/edit/edit.module

core/modules/edit/lib/Drupal/edit/Tests/EditLoadingTest.php

core/modules/editor/editor.module

core/modules/field_ui/field_ui.module

core/modules/file/file.module

core/modules/filter/filter.module