避免每次viewDidAppear，聊天列表都滚动到底部，影响用户体验

AIIM/Controller/chat/ChatController.m

@@ -286,7 +286,6 @@ static const CGFloat kQuoteViewHeight = 46.0f;
     [super viewDidAppear:animated];
     _titlelb.text = self.titlename;
     [self startTimer];
-    [self movetoBotton];
 //    NSLog(@"viewDidAppear-----:%@",self);
 }