message: Remove unnecessary condition in DFS traversal
diff: @@ -1374,8 +1374,7 @@ void AutoMixedPrecisionImpl::AddClearAndGrayToWhiteIfBetweenWhite(
  absl::flat_hash_set<int> downstream_of_white_set;
  for (int root_idx = 0; root_idx < graph_type_view_.num_nodes(); ++root_idx) {
  const NodeTypeId& root = *graph_type_view_.GetNode(root_idx);
  - if (!ShouldProcess(*root.node) || downstream_of_white_set.count(root_idx) ||
  - !fp16_whitelist_.count(root.node->op())) {
  + if (!ShouldProcess(*root.node) || !fp16_whitelist_.count(root.node->op())) {
  continue;
  }
  DfsTypeTraversal(
  