Remove unused decorators import from soc.views.models.role module.
Patch by: Pawel Solyga
Review by: to-be-reviewed
"Decorator for views that gzips pages if the client supports it."
from django.utils.decorators import decorator_from_middleware
from django.middleware.gzip import GZipMiddleware
gzip_page = decorator_from_middleware(GZipMiddleware)