Disable mailman3-fedmsg-plugin stuff until Monday

...when we have time to mess with it.

This reverts commit 0489ad0d69.

roles/mailman/tasks/main.yml

@@ -59,6 +59,7 @@
   - python-pylibmc
   - python-django-haystack-xapian
   - yum-plugin-post-transaction-actions
+  #- mailman3-fedmsg-plugin
   # to run the test suite:
   - python-beautifulsoup4
   - python-mock
@@ -74,19 +75,6 @@
   tags:
   - packages
 
-- name: setup the mailman3-fedmsg repo
-  copy: src=mailman3-fedmsg-plugin.RedHat.repo
-        dest=/etc/yum.repos.d/mailman3-fedmsg-plugin.repo
-  when: ansible_distribution == 'RedHat'
-
-- name: add the GPG key for the mailman3-fedmsg-plugin repo
-  rpm_key: state=present key=https://copr-be.cloud.fedoraproject.org/results/ralph/fedmsg-python34/pubkey.gpg
-  when: ansible_distribution == 'RedHat'
-
-- name: install the mailman3 fedmsg plugin rpm
-  yum: pkg=mailman3-fedmsg-plugin state=present
-  when: ansible_distribution == 'RedHat'
-
 - name: install packages when not using source extracts
   when: ansible_hostname != "lists-dev.cloud.fedoraproject.org"
   yum: pkg={{ item }} state=present