Remove unraised return

Author: enisnazif

nbgrader/server_extensions/course_list/handlers.py

@@ -76,8 +76,6 @@ def check_for_local_formgrader(self, config):
             raise gen.Return([])
 
         coursedir = CourseDirectory(config=config)
-        if not coursedir.course_id:
-            gen.Return([])
 
         if status:
             raise gen.Return([{