Revert of cc : Add IsInIdtoIndexMap to property tres (patchset #4 id:60001 of https://codereview.ch…

cc/trees/property_tree.cc

Index: cc/trees/property_tree.cc
diff --git a/cc/trees/property_tree.cc b/cc/trees/property_tree.cc
index f9b2cfe615679ab5f7933c5fa6a5c762c0e17067..17ecbbcf4a387dbfb731837408150dd67177eab8 100644
--- a/cc/trees/property_tree.cc
+++ b/cc/trees/property_tree.cc
@@ -2058,32 +2058,6 @@ void PropertyTrees::PushOpacityIfNeeded(PropertyTrees* target_tree) {
   }
 }
 
-void PropertyTrees::RemoveIdFromIdToIndexMaps(int id) {
-  transform_id_to_index_map.erase(id);
-  effect_id_to_index_map.erase(id);
-  clip_id_to_index_map.erase(id);
-  scroll_id_to_index_map.erase(id);
-}
-
-bool PropertyTrees::IsInIdToIndexMap(TreeType tree_type, int id) {
-  std::unordered_map<int, int>* id_to_index_map = nullptr;
-  switch (tree_type) {
-    case TRANSFORM:
-      id_to_index_map = &transform_id_to_index_map;
-      break;
-    case EFFECT:
-      id_to_index_map = &effect_id_to_index_map;
-      break;
-    case CLIP:
-      id_to_index_map = &clip_id_to_index_map;
-      break;
-    case SCROLL:
-      id_to_index_map = &scroll_id_to_index_map;
-      break;
-  }
-  return id_to_index_map->find(id) != id_to_index_map->end();
-}
-
 void PropertyTrees::UpdateChangeTracking() {
   for (int id = 1; id < static_cast<int>(effect_tree.size()); ++id) {
     EffectNode* node = effect_tree.Node(id);