Don't run delete logic on manual created data checks

aleksis/apps/untis/data_checks.py

@@ -14,6 +14,10 @@ class CourseGroupNotFoundAndCreated(DataCheck):
 
     solve_options = {IgnoreSolveOption.name: IgnoreSolveOption}
 
+    @classmethod
+    def run_check_data(cls):
+        pass
+
 
 class CourseGroupNotFoundAndNotCreated(DataCheck):
     name = "untis_not_created_not_primary_source"
@@ -26,3 +30,7 @@ class CourseGroupNotFoundAndNotCreated(DataCheck):
     )
 
     solve_options = {IgnoreSolveOption.name: IgnoreSolveOption}
+
+    @classmethod
+    def run_check_data(cls):
+        pass