message: Remove if macros
diff: @@ -359,11 +359,9 @@ void LaunchConv2DBackpropInputOp<GPUDevice, T>::operator()(
  // CuDNN frontend will expose more engines some of which might use too much
  // workspace. This would increase the overall demand of memory when training
  // models.
  -#if GOOGLE_CUDA
  if (CudnnUseFrontend()) {
  workspace_bytes = 1LL << 30; // 1GB by default.
  }
  -#endif // GOOGLE_CUDA
  static int64 ConvolveBackwardDataScratchSize = GetDnnWorkspaceLimit(
  "TF_CUDNN_WORKSPACE_LIMIT_IN_MB", workspace_bytes
  );
  