[L0] Fixed doubled execution of cmdlist

During executeAllCommandList we check if all events associated with list
has been signaled, if so we do not execute commandlist.

Signed-off-by: Winston Zhang <[email protected]>

Author: winstonzhang-intel

source/adapters/level_zero/event.cpp

@@ -825,9 +825,6 @@ urEventWait(uint32_t NumEvents, ///< [in] number of events in the event list
           Queues.insert(Q);
         }
       }
-      // Added to prevent race condition when using counter-based events.
-      if (Event->CounterBasedEventsEnabled)
-        std::this_thread::sleep_for(std::chrono::nanoseconds(1));
     }
   }