revert: remove bound-arrows from frames (#7190)

src/element/binding.ts

@@ -27,7 +27,6 @@ import { LinearElementEditor } from "./linearElementEditor";
 import { arrayToMap, tupleToCoors } from "../utils";
 import { KEYS } from "../keys";
 import { getBoundTextElement, handleBindTextResize } from "./textElement";
-import { isValidFrameChild } from "../frame";
 
 export type SuggestedBinding =
   | NonDeleted<ExcalidrawBindableElement>
@@ -212,15 +211,6 @@ export const bindLinearElement = (
       }),
     });
   }
-  if (linearElement.frameId && !isValidFrameChild(linearElement)) {
-    mutateElement(
-      linearElement,
-      {
-        frameId: null,
-      },
-      false,
-    );
-  }
 };
 
 // Don't bind both ends of a simple segment