message: Remove unnecessary tf32_execution_allowed check
diff: @@ -402,14 +402,6 @@ bool CUDABlas::DoBlasInternalImpl(FuncT cublas_func, Stream *stream,
  : CUBLAS_POINTER_MODE_DEVICE)) {
  return false;
  }
  -#if CUBLAS_VER_MAJOR >= 11
  - ScopedCublasMathMode math_mode{blas_};
  - if (!tensorflow::tf32_execution_allowed()) {
  - if (!math_mode.Init(CUBLAS_DEFAULT_MATH)) {
  - return false;
  - }
  - }
  -#endif
  cublasStatus_t ret = cublas_func(blas_, args...);
  if ((err_on_failure || VLOG_IS_ON(3)) && ret != CUBLAS_STATUS_SUCCESS) {
  LOG(ERROR) << "failed to run cuBLAS routine: " << ToString(ret);
  