Don't delete packaging any more on success

With the creation of better jenkins job reaping in puppetlabs-modules, we no
longer need to delete the packaging job when the repo job succeeds. This commit
removes that deletion, since having the job around is slightly useful to
confirm it all finished successfully.

Signed-off-by: Moses Mendoza <moses@puppetlabs.com>
Merge pull request #194 from MosesMendoza/stop_deleting_jobs

Don't delete packaging any more on success