Remove 'holland' package from the wheel repository

The holland package is unused in any of the plays and appears to have
mistakenly been added back to the wheel repository in
8e6dbd01c9924ebecffdc04f74e4f6d042610ed8.

This patch removes it again.

Change-Id: I68f9c286c90e613ed1edff5e73ea65a2cd4064ed
Closes-Bug: #1425935

playbooks/vars/repo_packages/holland.yml

@@ -1,25 +0,0 @@
----
-# Copyright 2014, 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.
-
-## Git source for holland client
-git_repo: https://github.com/holland-backup/holland
-git_install_branch: "v1.0.10"
-git_dest: "/opt/holland_{{ git_install_branch | replace('/', '_') }}"
-
-# git_repo_plugins are other installable packages contained within the same git repo
-git_repo_plugins:
-  - { path: "plugins", package: "holland.lib.common" }
-  - { path: "plugins", package: "holland.lib.mysql" }
-  - { path: "plugins", package: "holland.backup.xtrabackup" }