fix: remove unnecessary snippet

frontend/src/components/visual-editor/v2/Diagrams.tsx

@@ -453,28 +453,12 @@ const Diagrams = () => {
 
     if (ids) {
       for (const blockId of ids) {
-        const block = getBlockFromCache(blockId);
+        await updateBlock({
-
-        await updateBlock(
-          {
           id: blockId,
           params: {
             category: newCategoryId,
           },
-          },
-          {
-            onSuccess() {
-              updateCachedBlock({
-                id: blockId,
-                payload: {
-                  ...block,
-                  category: newCategoryId,
-                },
-                strategy: "overwrite",
         });
-            },
-          },
-        );
       }
 
       queryClient.removeQueries({