BUGFIX: publish is not generated.

BUGFIX: publish is not generated.

1. If there is an unpublished repo.
  The scheduler status is 'unpublished' if it is unpublished repo.
  In this case, this repo is ignored checking.

2. All architectures are disabled to build in a repo.
  In this case, deleterepo() function is called and just returned.
  If this repo is the last published repo in obs scheduler, it is
  possbile not to generate OBS_REPO_PUBLISHED event.

Change-Id: Ia08cece0476a5276b3a4a2527fcef8940e8d1ee5
Signed-off-by: Junghyun Kim <jh0822.kim@samsung.com>