removed unused save_task_log

inventory_provider/tasks/common.py

@@ -203,9 +203,3 @@ def get_next_redis(config):
             'derived next id: {}'.format(next_id))
 
     return _get_redis(config, next_id)
-
-
-def save_task_log(config, log):
-    jsonschema.validate(log, TASK_LOG_SCHEMA)
-    r = get_current_redis(config)
-    r.set(f'db:log:{log["meta"]["id"]}', json.dumps(log))