get rid of RAILS_ENV constant definition
get rid of RAILS_ENV constant definition

it interacts badly with the inst-jobs gem which, for historical
Rails version compatibility reasons, consults RAILS_ENV to see what
environment is in use, and having acts_as_fu define it causes
inst-jobs to think it's running in test when it's really running in
development.

brightbytes/acts_as_fu,brightbytes/acts_as_fu