drm/xe: Don't emit extra MI_BATCH_BUFFER_END in WA batchbuffer

The MI_BATCH_BUFFER_END is already added automatically by
__xe_bb_create_job(); including it in the construction of the workaround
batchbuffer results in an unnecessary duplicate.

Link: https://lore.kernel.org/r/20230329173334.4015124-4-matthew.d.roper@intel.comSigned-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_gt.c

@@ -203,8 +203,6 @@ static int emit_wa_job(struct xe_gt *gt, struct xe_engine *e)
 			bb->cs[bb->len++] = entry->set_bits;
 		}
 	}
-	bb->cs[bb->len++] = MI_NOOP;
-	bb->cs[bb->len++] = MI_BATCH_BUFFER_END;
 
 	batch_ofs = xe_bo_ggtt_addr(gt->kernel_bb_pool.bo);
 	job = xe_bb_create_wa_job(e, bb, batch_ofs);