[Sync] Remove special cased sessions default commit

components/sync/engine_impl/syncer_proto_util.cc

Index: components/sync/engine_impl/syncer_proto_util.cc
diff --git a/components/sync/engine_impl/syncer_proto_util.cc b/components/sync/engine_impl/syncer_proto_util.cc
index 8982929abb6c33b80e5a6e5a2b11e53328118f60..d91a4474ab2e48a43ae29b6c964f38f537fe9a6a 100644
--- a/components/sync/engine_impl/syncer_proto_util.cc
+++ b/components/sync/engine_impl/syncer_proto_util.cc
@@ -425,6 +425,10 @@ SyncerError SyncerProtoUtil::PostClientToServerMessage(
       std::map<ModelType, base::TimeDelta> delay_map;
       delay_map[SESSIONS] =
           base::TimeDelta::FromSeconds(command.sessions_commit_delay_seconds());
+      delay_map[FAVICON_TRACKING] =
+          base::TimeDelta::FromSeconds(command.sessions_commit_delay_seconds());
+      delay_map[FAVICON_IMAGES] =
+          base::TimeDelta::FromSeconds(command.sessions_commit_delay_seconds());
       cycle->delegate()->OnReceivedCustomNudgeDelays(delay_map);
     }