force tdb to be standalone

force tdb to be standalone

Forwarded: not-needed

Upstream ships contents of lib/tdb/ as a separate
source of tdb.  Since we build samba anyway, there's
no need to have separate tdb source package, it's
enough to build it during samba build.

Always build tdb as stand-alone library
(instead of being samba-private if in a subdir).

When building as a sub-library within samba,
where libreplace is a private library, libtdb.so
will have rpath pointing to the private samba
dir.  Since tdb actually does not use anything
from libreplace, just remove the dependency.

Gbp-Pq: Name tdb-standalone.diff