Removed bogus argument in frame profiling method

* Caused "Warning: xhprof_frame_end() expects exactly 0 parameters, 1 given in includes/libs/ScopedCallback.php on line 70"

Change-Id: I1ab5a973a185738cae97de4cfdc3cca78598d35e
(cherry picked from commit 9d0f0119c6fd98ae7736c8b11a38fed989b3209d)