Revert "Merge branch 'vcsrepo'"

vcsrepo is available in a module of its own, is missing tests, and
goes against the long-term goal of moving "extra" types out of core
puppet into modules (an example of this is the nagios types).

This reverts commit 25b967559dfa39eb094008c7a3952c4ee885530b, reversing
changes made to b87a1dea704ed981f2f0af728afac2c63e87b5a8.

Reviewed-by: Michael Stahnke <mike@puppetlabs.com>