Remove the ErrorHandleTests class

ErrorHandleTests is not being used, so remove it

Change-Id: Ib0774e90a202e46213cbe733333c2e675d02fc91

mistraldashboard/test/tests/error_handle.py

@@ -1,21 +0,0 @@
-# Copyright 2015 ASD Technologies Co.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-from mistraldashboard.test import helpers as test
-
-
-class ErrorHandleTests(test.TestCase):
-
-    class CommonException(Exception):
-        pass