remove unneeded imports; make ControlMessage's fields public

asyncutils.nim

@@ -8,8 +8,6 @@ from sequtils import
   map,
   foldl
 from posix import
-  SOL_SOCKET,
-  SCM_RIGHTS,
   EINTR,
   EWOULDBLOCK,
   EAGAIN,
@@ -52,10 +50,10 @@ proc asyncExecCmd*(command: string): Future[int] =
   addEvent(event, callback)
   return future
 
-type ControlMessage = object
-  level: int
-  msgType: int
-  data: string
+type ControlMessage* = object
+  level*: int
+  msgType*: int
+  data*: string
 
 proc asyncSendMsg*(fd: AsyncFD, data: string,
                    cmsgs: seq[ControlMessage] = @[]): Future[void] =