Removed the temporary script to update slugs on staging.
Removed the temporary script to update slugs on staging.

I ran `RAILS_ENV=staging ruby update_slugs_on_staging.rb` in the directory containing the currently deployed version of the app.  A quick check around the site suggests that all the slugs have been generated as expected so it's time for this little fella to go.

alphagov/whitehall,hotvulcan/whitehall,alphagov/whitehall,hotvulcan/whitehall,YOTOV-LIMITED/whitehall,ggoral/whitehall,robinwhittleton/whitehall,ggoral/whitehall,askl56/whitehall,askl56/whitehall,robinwhittleton/whitehall,askl56/whitehall,YOTOV-LIMITED/whitehall,YOTOV-LIMITED/whitehall,alphagov/whitehall,robinwhittleton/whitehall,robinwhittleton/whitehall,ggoral/whitehall,alphagov/whitehall,YOTOV-LIMITED/whitehall,hotvulcan/whitehall,hotvulcan/whitehall,askl56/whitehall,ggoral/whitehall