Cleanup after repo_build and pip_install retirement

Change-Id: I8ece554f5a2bb91074b9bc4dcc3d84816387f07c

defaults/main.yml

@@ -207,10 +207,4 @@ barbican_user_pip_packages: []
 barbican_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.
-barbican_role_project_group: barbican_all
-
 barbican_uwsgi_init_overrides: {}

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: galera_client
   src: https://opendev.org/openstack/openstack-ansible-galera_client
   scm: git