Remove Trusty support from os_tempest role

Change-Id: I5ad52a6ff39b735164b7f5107d54fe10ecca3e3f
Implements: blueprint trusty-removal

Vagrantfile

@@ -1,5 +1,5 @@
 Vagrant.configure(2) do |config|
-  config.vm.box = "ubuntu/trusty64"
+  config.vm.box = "ubuntu/xenial64"
   config.vm.provider "virtualbox" do |v|
     v.memory = 2048
     v.cpus = 2

bindep.txt

@@ -32,7 +32,7 @@ libselinux-python [platform:rpm]
 # For SSL SNI support
 python-pyasn1               [platform:dpkg]
 python-openssl              [platform:dpkg]
-python-ndg-httpsclient      [platform:ubuntu !platform:ubuntu-trusty]
+python-ndg-httpsclient      [platform:ubuntu]
 python2-pyasn1              [platform:rpm]
 pyOpenSSL                   [platform:rpm]
 python-ndg_httpsclient      [platform:rpm]

meta/main.yml

@@ -22,7 +22,7 @@ galaxy_info:
   platforms:
     - name: Ubuntu
       versions:
-        - trusty
+        - xenial
   categories:
     - cloud
     - python

vars/ubuntu-14.04.yml

@@ -1,18 +0,0 @@
----
-# Copyright 2016, Rackspace US, Inc.
-#
-# 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.
-
-tempest_distro_packages:
-  - git-core
-  - rsync