Delete old "license" checking code arounds user counts

This is legacy code that doesn't actually do anything of value

endpoints/api/__init__.py

@@ -322,10 +322,6 @@ def request_error(exception=None, **kwargs):
   raise InvalidRequest(message, data)
 
 
-def license_error(exception=None):
-  raise ExceedsLicenseException()
-
-
 def log_action(kind, user_or_orgname, metadata=None, repo=None):
   if not metadata:
     metadata = {}