Remove parameters that have sane defaults in the Heat templates.
In order to change these, one should use an environment file rather
than passing args to the deploy command. These commands should now
be considered deprecated in favor of the environment file.
Change-Id: Idbf85d455f348ed2ab9b34fe1dc95faec427a13f
Depends-On: Ifd740c50ee0e48e0cf50d9ebd9cc282155cb3a6d
d0b54c533d