code clean up

Author: YixingZhang007

sycl/test-e2e/Matrix/joint_matrix_bf16_fill_k_cache_runtime_dim.cpp

@@ -12,7 +12,7 @@
 
 // -ffp-model=precise is added to not depend on compiler defaults.
 
-// Waiting for the commit in IGC to be pulled into the driver
+// Waiting for the commit in IGC to be pulled into the driver to resolve the test.
 // XFAIL: gpu
 // XFAIL-TRACKER: CMPLRLLVM-63710