rh_metadata: remove c9s automotive pipeline
The automotive pipelines in c9s and rhel-9 are being disabled and therefore we no longer need to apply automotive related labels to c9s MRs.
The c9s/main-automotive branch is no longer an actively developed branch so mark it as inactive.
Fixes: KMAINT-1512
Signed-off-by: Scott Weaver scweaver@redhat.com
Edited by Scott Weaver