Remove changes remaining counter from about:sync

sync/engine/all_status.cc

Index: sync/engine/all_status.cc
diff --git a/sync/engine/all_status.cc b/sync/engine/all_status.cc
index 3deda48fb211a504611be15acba40eb8fe7f42af..5a2f616f84dc003d51b9168c1443c9a3bdb05273 100644
--- a/sync/engine/all_status.cc
+++ b/sync/engine/all_status.cc
@@ -32,7 +32,6 @@ SyncStatus AllStatus::CreateBlankStatus() const {
   status.hierarchy_conflicts = 0;
   status.server_conflicts = 0;
   status.committed_count = 0;
-  status.updates_available = 0;
   return status;
 }
 
@@ -51,8 +50,6 @@ SyncStatus AllStatus::CalcSyncing(const SyncCycleEvent &event) const {
     status.syncing = false;
   }
 
-  status.updates_available += snapshot.num_server_changes_remaining();
-
   status.num_entries_by_type = snapshot.num_entries_by_type();
   status.num_to_delete_entries_by_type =
       snapshot.num_to_delete_entries_by_type();