useBlockSync: just testing without isControlled effect (#61114)

Co-authored-by: ellatrix <ellatrix@git.wordpress.org>
Co-authored-by: youknowriad <youknowriad@git.wordpress.org>
Co-authored-by: jsnajdr <jsnajdr@git.wordpress.org>
Co-authored-by: draganescu <andraganescu@git.wordpress.org>

packages/block-editor/src/components/provider/use-block-sync.js

@@ -2,7 +2,7 @@
  * WordPress dependencies
  */
 import { useEffect, useRef } from '@wordpress/element';
-import { useRegistry, useSelect } from '@wordpress/data';
+import { useRegistry } from '@wordpress/data';
 import { cloneBlock } from '@wordpress/blocks';
 
 /**
@@ -82,15 +82,6 @@ export default function useBlockSync( {
 	} = registry.dispatch( blockEditorStore );
 	const { getBlockName, getBlocks, getSelectionStart, getSelectionEnd } =
 		registry.select( blockEditorStore );
-	const isControlled = useSelect(
-		( select ) => {
-			return (
-				! clientId ||
-				select( blockEditorStore ).areInnerBlocksControlled( clientId )
-			);
-		},
-		[ clientId ]
-	);
 
 	const pendingChanges = useRef( { incoming: null, outgoing: [] } );
 	const subscribed = useRef( false );
@@ -186,23 +177,6 @@ export default function useBlockSync( {
 		}
 	}, [ controlledBlocks, clientId ] );
 
-	const isMounted = useRef( false );
-
-	useEffect( () => {
-		// On mount, controlled blocks are already set in the effect above.
-		if ( ! isMounted.current ) {
-			isMounted.current = true;
-			return;
-		}
-
-		// When the block becomes uncontrolled, it means its inner state has been reset
-		// we need to take the blocks again from the external value property.
-		if ( ! isControlled ) {
-			pendingChanges.current.outgoing = [];
-			setControlledBlocks();
-		}
-	}, [ isControlled ] );
-
 	useEffect( () => {
 		const {
 			getSelectedBlocksInitialCaretPosition,