Remove vestigial setup code from ApplicationHelperTest
Remove vestigial setup code from ApplicationHelperTest

This was added in 3a0e9e96685fceb4b09a872cb6de8b8f98c34f17 but doesn't
appear to do anything.

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