sync_task_manager_unittest.cc: Remove dead code.

chrome/browser/sync_file_system/drive_backend/sync_task_manager_unittest.cc

Index: chrome/browser/sync_file_system/drive_backend/sync_task_manager_unittest.cc
diff --git a/chrome/browser/sync_file_system/drive_backend/sync_task_manager_unittest.cc b/chrome/browser/sync_file_system/drive_backend/sync_task_manager_unittest.cc
index b96a5e922dcb656288f692bd24b74be655eaf779..730cfad321770f5e120953518f1063e8fef417e1 100644
--- a/chrome/browser/sync_file_system/drive_backend/sync_task_manager_unittest.cc
+++ b/chrome/browser/sync_file_system/drive_backend/sync_task_manager_unittest.cc
@@ -47,15 +47,6 @@ void IncrementAndAssign(int expected_before_counter,
   *status_out = status;
 }
 
-template <typename T>
-void IncrementAndAssignWithOwnedPointer(T* object,
-                                        int* counter,
-                                        SyncStatusCode* status_out,
-                                        SyncStatusCode status) {
-  ++(*counter);
-  *status_out = status;
-}
-
 class TaskManagerClient
     : public SyncTaskManager::Client,
       public base::SupportsWeakPtr<TaskManagerClient> {