Fix for regression in commit:
da0ca94219
When running rocrtstNeg.Queue_Validation_InvalidWorkGroupSize, each
time rocrtst::LoadKernelFromObjFile is called, a new CodeObject is
created and not deleted until end of the whole test. Each CodeObject
keeps an open file descriptor of the kernel file and this can exceed
maximum allowed open files on some systems. Deleting the CodeObjects
after each iteration in the test.
Change-Id: I388e56f95f7b671ecc29d5ecb4eb8ac2d0ddc412
[ROCm/ROCR-Runtime commit: 50b636d1d8]
David Yat Sin
d347d673d1