remove unnecessary comments from util-scripts/*

utility-scripts/create_groups.py

 #!/usr/bin/python
 #
 # File:   create_groups.py
-# Date:   04-Aug-12
-# Author: I. Chuang <ichuang@mit.edu>
 #
 # Create all staff_* groups for classes in data directory.
 

utility-scripts/create_user.py

 #!/usr/bin/python
 #
 # File:   create_user.py
-# Date:   04-Aug-12
-# Author: I. Chuang <ichuang@mit.edu>
 #
 # Create user.  Prompt for groups and ExternalAuthMap