[UR] Remove an outdated comment (#20667)

Signed-off-by: Lukasz Dorau <[email protected]>

Author: ldorau

unified-runtime/source/adapters/level_zero/v2/command_list_manager.cpp

@@ -233,7 +233,6 @@ ur_result_t ur_command_list_manager::appendKernelLaunchUnlocked(
   wait_list_view waitListView =
       getWaitListView(phEventWaitList, numEventsInWaitList);
 
-  // last arguments: pKMemObj == nullptr and pNext == nullptr
   return appendKernelLaunchLocked(
       hKernel, hZeKernel, workDim, pGlobalWorkOffset, pGlobalWorkSize,
       pLocalWorkSize, waitListView, phEvent, cooperative);