remove a code to finish job requests when winix exits

Actually there was a bug and the code was not correctly waiting for the job requests.

winixd/core/app.cpp

@@ -934,33 +934,12 @@ void App::Start()
 		fcgi_request = &cur.request->fcgi_request;
 	}
 
-	WaitForRequestsToFinish();
-}
-
-
-/*
- * wait for requests from the jobs
- */
-void App::WaitForRequestsToFinish()
-{
-	bool is_req_tab_empty = false;
-
-	{
-		Winix::Lock lock(synchro);
-		system.DeleteOldRequests();
-		is_req_tab_empty = system.req_tab.empty();
-	}
-
-	while( is_req_tab_empty )
-	{
-		log << log3 << "App: waiting for requests to finish..." << logend << logsave;
-		sleep(1);
-
-		{
-			Winix::Lock lock(synchro);
-			is_req_tab_empty = system.req_tab.empty();
-		}
-	}
+	/*
+	 * we do not wait for some job requests to finish (if there are such requests)
+	 * the job loop will exit immediately when a synchro->is_stop_signal is defined
+	 * and there is no need to process such requests (the www server will return a 50x error
+	 * to the client)
+	 */
 }