remove cancelAnimationFrame complexity and rely on MarkedExecution class

src/utils/MarkedExecution.ts

@@ -33,13 +33,6 @@ export class MarkedExecution {
     constructor(private fn: () => void, private onMarkCallback?: () => void) {
     }
 
-    /**
-     * Getter for the _marked property
-     */
-    public get marked() {
-        return this._marked;
-    }
-
     /**
      * Resets the mark without calling the function.
      */