Revert "Missing Block: Support extraction of inner blocks"

This reverts commit 728f2f3.

packages/block-library/src/missing/edit.js

@@ -1,49 +1,30 @@
-/**
- * External dependencies
- */
-import { get } from 'lodash';
-
 /**
  * WordPress dependencies
  */
 import { __, sprintf } from '@wordpress/i18n';
 import { RawHTML } from '@wordpress/element';
 import { Button } from '@wordpress/components';
-import { getBlockType, createBlock, parse } from '@wordpress/blocks';
+import { getBlockType, createBlock } from '@wordpress/blocks';
 import { withDispatch } from '@wordpress/data';
 import { Warning } from '@wordpress/block-editor';
 
-function MissingBlockWarning( { attributes, convertToHTML, extractBlocks } ) {
+function MissingBlockWarning( { attributes, convertToHTML } ) {
 	const { originalName, originalUndelimitedContent } = attributes;
 	const hasContent = !! originalUndelimitedContent;
-	const parseTree = parse( attributes.originalContent );
-	const hasInnerBlocks = get( parseTree, [ 0, 'innerBlocks' ], [] ).length;
 	const hasHTMLBlock = getBlockType( 'core/html' );
 
 	const actions = [];
 	let messageHTML;
 	if ( hasContent && hasHTMLBlock ) {
-		messageHTML = hasInnerBlocks ?
-			sprintf(
-				__( 'Your site doesn’t include support for the "%s" block. You can leave this block intact, convert its content to a Custom HTML block, extract any blocks it may contain, or remove it entirely.' ),
-				originalName
-			) :
-			sprintf(
-				__( 'Your site doesn’t include support for the "%s" block. You can leave this block intact, convert its content to a Custom HTML block, or remove it entirely.' ),
-				originalName
-			);
+		messageHTML = sprintf(
+			__( 'Your site doesn’t include support for the "%s" block. You can leave this block intact, convert its content to a Custom HTML block, or remove it entirely.' ),
+			originalName
+		);
 		actions.push(
 			<Button key="convert" onClick={ convertToHTML } isLarge isPrimary>
 				{ __( 'Keep as HTML' ) }
 			</Button>
 		);
-		if ( hasInnerBlocks ) {
-			actions.push(
-				<Button key="extract" onClick={ extractBlocks } isLarge>
-					{ __( 'Keep inner blocks' ) }
-				</Button>
-			);
-		}
 	} else {
 		messageHTML = sprintf(
 			__( 'Your site doesn’t include support for the "%s" block. You can leave this block intact or remove it entirely.' ),
@@ -69,13 +50,6 @@ const MissingEdit = withDispatch( ( dispatch, { clientId, attributes } ) => {
 				content: attributes.originalUndelimitedContent,
 			} ) );
 		},
-		extractBlocks() {
-			replaceBlock( clientId, get(
-				parse( attributes.originalContent ),
-				[ 0, 'innerBlocks' ],
-				[]
-			) );
-		},
 	};
 } )( MissingBlockWarning );