add hero runner and clean improve runner lib

lib/runner/sync_runner.rs

@@ -142,10 +142,6 @@ impl Runner for SyncRunner {
         }
     }
 
-    fn runner_type(&self) -> &'static str {
-        "Sync"
-    }
-    
     fn runner_id(&self) -> &str {
         &self.config.runner_id
     }