Remove debug code

Author: fabiomestre

source/adapters/level_zero/command_buffer.cpp

@@ -334,7 +334,6 @@ ur_result_t enqueueCommandBufferFillHelper(
   bool PreferCopyEngine;
   UR_CALL(
       preferCopyEngineForFill(CommandBuffer, PatternSize, PreferCopyEngine));
-  PreferCopyEngine = false;
 
   ze_command_list_handle_t ZeCommandList =
       CommandBuffer->chooseCommandList(PreferCopyEngine);