Drop incomplete use_puppetlabs

This knob is incomplete. We do not use package installation for lint,
syntax, unit and litmus tests and we always use puppetlabs package in
integration tests.

Setting use_puppetlabs results in conflict with the installation steps
in each jobs.

Change-Id: I9c84b73b68197d5d7d5764ed6a43cb22c3bca8e5

playbooks/prepare-node-common.yaml

@@ -87,35 +87,3 @@
         - ruby-dev
         - zlib1g-dev
         - python3-pip
-
-    - block:
-      - name: Set up puppetlabs repo (CentOS/RHEL)
-        dnf:
-          name: "https://yum.puppetlabs.com/puppet{{ puppet }}-release-el-{{ ansible_distribution_major_version }}.noarch.rpm"
-        become: true
-
-      - name: Install puppetlabs puppet-agent (CentOS/RHEL)
-        dnf:
-          name: puppet-agent
-        become: true
-
-      when:
-        - use_puppetlabs is defined
-        - use_puppetlabs|bool
-        - ansible_os_family == 'RedHat'
-
-    - block:
-      - name: Set up puppetlabs repo (Ubuntu and Debian)
-        apt:
-          name: "https://apt.puppetlabs.com/puppet{{ puppet }}-release-{{ ansible_distribution_release }}.deb"
-        become: true
-
-      - name: Install puppetlabs puppet-agent (Ubuntu and Debian)
-        apt:
-          name: puppet-agent
-        become: true
-
-      when:
-        - use_puppetlabs is defined
-        - use_puppetlabs|bool
-        - ansible_os_family == 'Debian'

zuul.d/base.yaml

@@ -86,7 +86,6 @@
     nodeset: ubuntu-jammy
     vars:
       puppet: 7
-      use_puppetlabs: false
 
 - job:
     name: puppet-openstack-module-base