fix layout on MetalKit view

Signal/src/ViewControllers/CallViewController.swift

@@ -617,6 +617,7 @@ class CallViewController: OWSViewController, CallObserver, CallServiceObserver {
 
     internal func updateRemoteVideoLayout() {
         remoteVideoView.isHidden = !self.hasRemoteVideoTrack
+        self.remoteVideoView.setSize(self.view.frame.size)
         self.remoteVideoView.updateRemoteVideoLayout()
         updateCallUI(callState: call.state)
     }

Signal/src/views/RemoteVideoView.m

@@ -45,6 +45,7 @@
 //        super.init()
 //    }
 //}
+
 - (instancetype)init
 {
     self = [super init];
@@ -65,6 +66,8 @@
     }
     
     [self addSubview:_adaptee];
+
+    _adaptee.layoutMargins = UIEdgeInsetsZero;
     [_adaptee autoPinEdgesToSuperviewEdges];
 
     return self;