SWDEV-464648 - code and comment cleanups

Change-Id: I5ba3f1bff500b3cd5903c2f441017735e688f83f


[ROCm/clr commit: 8f42ad6aa3]

projects/clr/opencl/tests/ocltst/module/runtime/OCLPinnedMemory.cpp

@@ -59,7 +59,6 @@ void OCLPinnedMemory::open(unsigned int test, char* units, double& conversion,
 
   cl_int status;
 
-  // Observed failures with Carrizo on GSL path
   cl_bool is_apu;
   status = clGetDeviceInfo(devices_[deviceId], CL_DEVICE_HOST_UNIFIED_MEMORY,
                            sizeof(cl_bool), &is_apu, nullptr);