Remove BlockEdit filter for image size in favor of PHP filter

If the 'full' size image is never needed in AMP stories,
this could be much simpler.
It's removed whenever the 'post_type' is 'amp_story'.
This might need more thought, though.

Author: kienstra

assets/src/stories-editor/components/higher-order/with-replaced-full-size-image.js

@@ -30,5 +30,4 @@ export { default as withWrapperProps } from './with-wrapper-props';
 export { default as withActivePageState } from './with-active-page-state';
 export { default as withStoryBlockDropZone } from './with-story-block-drop-zone';
 export { default as withCallToActionValidation } from './higher-order/with-call-to-action-validation';
-export { default as withReplacedFullSizeImage } from './higher-order/with-replaced-full-size-image';
 export { default as withVideoPosterImageNotice } from './higher-order/with-video-poster-image-notice';

assets/src/stories-editor/components/index.js

@@ -31,7 +31,6 @@ import {
 	withActivePageState,
 	withStoryBlockDropZone,
 	withCallToActionValidation,
-	withReplacedFullSizeImage,
 	withVideoPosterImageNotice,
 } from './components';
 import {
@@ -297,7 +296,6 @@ addFilter( 'blocks.getSaveContent.extraProps', 'ampStoryEditorBlocks/addExtraAtt
 addFilter( 'blocks.getSaveElement', 'ampStoryEditorBlocks/wrapBlocksInGridLayer', wrapBlocksInGridLayer );
 addFilter( 'editor.BlockDropZone', 'ampStoryEditorBlocks/withStoryBlockDropZone', withStoryBlockDropZone );
 addFilter( 'editor.BlockEdit', 'ampStoryEditorBlocks/withCallToActionValidation', withCallToActionValidation );
-addFilter( 'editor.BlockEdit', 'ampStoryEditorBlocks/withReplacedFullSizeImage', withReplacedFullSizeImage );
 addFilter( 'blocks.getBlockAttributes', 'ampStoryEditorBlocks/filterBlockAttributes', filterBlockAttributes );
 
 const blocks = require.context( './blocks', true, /(?<!test\/)index\.js$/ );

assets/src/stories-editor/index.js

@@ -1529,6 +1529,7 @@ public static function change_embed_iframe_attributes( $output, $post ) {
 	 */
 	public static function add_new_max_image_size( $image_sizes ) {
 		if ( self::POST_TYPE_SLUG === get_post_type() ) {
+			unset( $image_sizes['full'] );
 			$image_sizes[ self::STORY_PAGE_IMAGE_SIZE ] = __( 'Story Background', 'amp' );
 		}