lock test: remove unused function

Tested: unit test passed.

Signed-off-by: Nan Zhou <nanzhoumails@gmail.com>
Change-Id: I6f9c6b4648d98f4f035830d8a5da094ba76e7458
diff --git a/redfish-core/ut/lock_test.cpp b/redfish-core/ut/lock_test.cpp
index 9c37da3..5c0df1f 100644
--- a/redfish-core/ut/lock_test.cpp
+++ b/redfish-core/ut/lock_test.cpp
@@ -103,11 +103,6 @@
         auto status = Lock::isItMyLock(tids, ids);
         return status;
     }
-    RcGetLockList getList(const std::vector<std::string>& listSessionid)
-    {
-        auto status = Lock::getLockList(listSessionid);
-        return status;
-    }
     friend class LockTest;
 };