Stop using zuul-cloner in debian-glue jobs
The debian-glue jobs have to be migrated to Stretch since we are phasing
out Jessie instances. The jobs rely on zuul-cloner which is provided by
the zuul Debian package. We are not going to package it for Stretch.
Remove zuul-cloner and use raw git commands. Since the debian-glue jobs
are for a single repository, it is all fine. The logic is similar to
dockerfiles/ci-src-setup-simple/run.sh.
Update:
debian-glue debian-glue-backports debian-glue-backports-non-voting debian-glue-buster debian-glue-buster-non-voting debian-glue-jessie debian-glue-jessie-non-voting debian-glue-jessie-wikimedia debian-glue-jessie-wikimedia-non-voting debian-glue-nocheck debian-glue-non-voting debian-glue-stretch debian-glue-stretch-backports debian-glue-stretch-backports-non-voting debian-glue-stretch-non-voting debian-glue-stretch-wikimedia debian-glue-stretch-wikimedia-non-voting debian-glue-trusty debian-glue-trusty-non-voting debian-glue-unstable debian-glue-unstable-non-voting
Bug: T224943
Change-Id: Id82a1a319639dabd8d6e4c2a931df1121261bcff