Cleanup after repo_build and pip_install retirement

Change-Id: I644635ee0cf4db252eae554185ae84d835b3c63d

defaults/main.yml

@@ -484,12 +484,6 @@ keystone_user_pip_packages: []
 keystone_optional_oslomsg_amqp1_pip_packages:
   - oslo.messaging[amqp1]
 
-# This variable is used by the repo_build process to determine
-# which host group to check for members of before building the
-# pip packages required by this role. The value is picked up
-# by the py_pkgs lookup.
-keystone_role_project_group: keystone_all
-
 # NOTE(cloudnull): Tunable SSO callback file file-based overrides If defined,
 #                  it'll be read from the deployment host, interpreted by the
 #                  template engine and copied to the target host.

tests/ansible-role-requirements.yml

@@ -3,10 +3,6 @@
   src: https://opendev.org/openstack/openstack-ansible-apt_package_pinning
   scm: git
   version: master
-- name: pip_install
-  src: https://opendev.org/openstack/openstack-ansible-pip_install
-  scm: git
-  version: master
 - name: memcached_server
   src: https://opendev.org/openstack/openstack-ansible-memcached_server
   scm: git