tubik: minor Makefile cleanups

tubik: minor Makefile cleanups

Rework the install targets for udebug to avoid warnings in the case
where afssrvbindir = bindir

Remove commented out compile line for udebug

Reviewed-on: http://gerrit.openafs.org/2851
Reviewed-by: Jeffrey Altman <jaltman@openafs.org>
Tested-by: Jeffrey Altman <jaltman@openafs.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
(cherry picked from commit e6c9cf2466e849753db99b48b0da26665ef0a0e3)
Change-Id: Iab023770f7d28f2e8b205ae5572d12e2c14dd742
Reviewed-on: http://gerrit.openafs.org/2927
Tested-by: Derrick Brashear <shadow@dementia.org>