Fix memory leak in ServiceQueueTrajPoint.c

A rosidl_runtime_c__String that was a member of a message was having an init() function called on it after the message was being created. But creating a message automatically initializes the string, so it was getting double initialized.

src/ServiceQueueTrajPoint.c

@@ -46,7 +46,6 @@ void Ros_ServiceQueueTrajPoint_Initialize()
 
     //--------------
     g_messages_QueueTrajPoint.response = motoros2_interfaces__srv__QueueTrajPoint_Response__create();
-    rosidl_runtime_c__String__init(&g_messages_QueueTrajPoint.response->message);
 
     //--------------
     MOTOROS2_MEM_TRACE_REPORT(svc_queue_point_init);