Remove IDE-specific placeholder from before we had manage.pyUse manage.py…

Remove IDE-specific placeholder from before we had manage.pyUse manage.py instead (with cms --settings dev runserver --noreload --traceback 8001)

cms/pydev_manage.py

-'''
-Used for pydev eclipse. Should be innocuous for everyone else.
-Created on May 8, 2013
-
-@author: dmitchell
-'''
-#!/home/<username>/mitx_all/python/bin/python
-from django.core import management
-
-if __name__ == '__main__':
-    management.execute_from_command_line()