(PDB-847) fix PE compatibility bug

This patch deletes the GlobalCheck method that ran before each call to
the PDB indirectors to check that the running version of Puppet was greater
than 3.5. The check is redundant because Puppet 3.5 is a requirement for
puppetdb-terminus and was causing a bug by mis-parsing PE semvers.
Merge pull request #1069 from wkalt/ticket/stable/pdb-847-pe-compatibilty

(PDB-847) fix PE compatibility bug