Remove localhost host_vars file

As it turns out, you cannot use a vars plugin to set
any vars for localhost. Ansible simply ignores the
file.

Change-Id: If14456c971778e91f30ea3fff5559f20a3fdcd80

host_vars/localhost.yml

@@ -1,16 +0,0 @@
----
-# Copyright 2017, Logan Vig <logan2211@gmail.com>
-#
-# 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.
-
-ansible_python_interpreter: /usr/bin/python