Remove deprecated series metadata and tests

Change-Id: I6b20a8fe72658f3f93e97469c3c950695553e8ea

metadata.yaml

@@ -9,8 +9,6 @@ tags:
 series:
   - xenial
   - zesty
-  - yakkety
-  - zesty
 subordinate: true
 peers:
   lxd-migration:

tests/gate-basic-yakkety-newton

@@ -1,23 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2016 Canonical Ltd
-#
-# 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.
-
-"""Amulet tests on a basic lxd deployment on yakkety-newton."""
-
-from basic_deployment import LXDBasicDeployment
-
-if __name__ == '__main__':
-    deployment = LXDBasicDeployment(series='yakkety')
-    deployment.run_tests()