(PUP-3307) Remove 'rmdeps' param from Puppet::Type#remove

This commit removes the deprecated 'rmdeps' parameter from
the Puppet::Type#remove method.

This commit is part of the Puppet 4 code removal effort.
Merge pull request #3129 from whopper/pup-3307/remove-param-type

(PUP-3307) Remove 'rmdeps' param from Puppet::Type#remove