As repo_build role has been succesfully replaced with
python_venv_build role, we have no need in it's futher maintaining and
releasing.
Depends-On: https://review.opendev.org/717715
Change-Id: Ibf9ce1d602c5cfa9ed7431ca37de02df3335b36a
When pip_offline_install is used on a deployment such as an AIO where
the host being installed to ie. "aio1" is also the deployment host,
a race condition existed where the pip wheels would be downloaded,
uploaded to the same path on the target host, and then cleaned up
from the deployment host before the installation was continued.
The result is a race condition where the wheels are removed from
the target prior to installation due to the target being local.
This changes the pip offline install cleanup to run as a handler
so the cleanup can take place after the role has completed its work
with the cached wheels.
Change-Id: Ibf36118d42950f0f64f83b6ffc3601c9a241289d