Reverting Change I521ac13b: Upgrading SMgr dependency to Puppet 3.7.2

- Checkins that pertain to this change haven't been made yet
- Postponing this change to after those checkins have been made

Change-Id: I24a00fb71c97ae5f407d6033f37569a3b024b4c2
Merge "Reverting Change I521ac13b: Upgrading SMgr dependency to Puppet 3.7.2"