cleanup: remove tasks from pike

These tasks were to be removed from Pike which take care of cleaning
up old resources.  They are no longer necessary.

Change-Id: I1e4b4c333b1f420c7deb2756ac4433361b5aeea4

tasks/galera_client_install_apt.yml

@@ -47,42 +47,6 @@
   tags:
     - galera-client-apt-keys
 
-- name: Ensure the sources.list.d folder exists
-  file:
-    path: "/etc/apt/sources.list.d/"
-    state: directory
-  tags:
-    - galera-client-repos
-
-# TODO: Remove the following two tasks in Pike
-# They're only required during upgrades transitioning to a
-# statically named apt sources file.
-- name: Find old sources
-  find:
-    path: "/etc/apt/sources.list.d/"
-    patterns: "^(?!{{ mariadb_repo_filename }})(.+)|(.+)(?<!{{ mariadb_repo_filename }})\\.list$"
-    contains: "^.*maria.*$"
-    use_regex: true
-  register: old_sources
-  tags:
-    - galera-client-repos
-
-- name: Remove old sources
-  file:
-    path: "{{ item.path }}"
-    state: absent
-  with_items: "{{ old_sources.files | default([]) }}"
-  tags:
-    - galera-client-repos
-
-- name: Remove old galera repo
-  lineinfile:
-    dest: /etc/apt/sources.list.d/{{ mariadb_repo_filename }}.list
-    regexp: "^((?!{{ galera_client_repo }}).*)$"
-    state: absent
-  tags:
-    - galera-client-repos
-
 - name: Add galera repo
   apt_repository:
     repo: "{{ galera_client_repo }}"