message: [NFC] Remove misleading param name hints
  Since we didn't use the special `/*name=*/value` syntax these weren't getting
  checked and were incorrect.  Instead just use default args.
diff: @@ -436,11 +436,10 @@ XlaCompiler::XlaCompiler(XlaCompiler::Options options)
  FunctionDefLibrary{}));
  local_pflr_.reset(new ProcessFunctionLibraryRuntime(
  &device_mgr_, Env::Default(), options.graph_def_version,
  - local_flib_def_.get(), OptimizerOptions(),
  - nullptr /* custom_kernel_creator */));
  + local_flib_def_.get(), OptimizerOptions()));
  pflr_.reset(new ProcessFunctionLibraryRuntime(
  &device_mgr_, Env::Default(), options.graph_def_version, options.flib_def,
  - OptimizerOptions(), nullptr /* custom_kernel_creator */));
  + OptimizerOptions()));
  local_flib_runtime_ = local_pflr_->GetFLR(device_->name());
  flib_runtime_ = pflr_->GetFLR(device_->name());
  