Gitea 1.16 added partial clone support, but the clone filters pip
tries to apply (--filter=blob:none) don't work well when combined
with older cgit clients and lead to errors like "Server does not
allow request for unadvertised object" or "protocol error: bad pack
header".
Explicitly disable this feature server-side for now, so that clients
will fall back to making full clones.
Change-Id: Ia86394d5176c28567bf67b60578aadde6629c775
Depends-On: https://review.opendev.org/834196
4863b1200c