Remove django_mobile work around
Remove django_mobile work around

4d66d316 Pulled in a version that fixes this, removing the work around
to suppress warning.

petervanderdoes/wger,petervanderdoes/wger,rolandgeider/wger,wger-project/wger,wger-project/wger,petervanderdoes/wger,petervanderdoes/wger,wger-project/wger,rolandgeider/wger,rolandgeider/wger,rolandgeider/wger,wger-project/wger