Show Matrix RTC calls as unsupported. (#7862)

Riot/Modules/Room/TimelineCells/Call/MatrixRTC/RoomMatrixRTCCallCell.swift

@@ -0,0 +1,29 @@
+// 
+// Copyright 2021-2024 New Vector Ltd.
+//
+// SPDX-License-Identifier: AGPL-3.0-only
+// Please see LICENSE in the repository root for full details.
+//
+
+import UIKit
+
+@objcMembers
+class RoomMatrixRTCCallCell: RoomCallBaseCell {
+    private static var className: String { String(describing: self) }
+    
+    //  MARK: - MXKCellRendering
+    
+    override func render(_ cellData: MXKCellData!) {
+        super.render(cellData)
+        
+        guard let bubbleCellData = cellData as? RoomBubbleCellData else { return }
+        let roomID = bubbleCellData.roomId
+        guard let room = bubbleCellData.mxSession.room(withRoomId: roomID) else { return }
+        
+        room.summary.setRoomAvatarImageIn(innerContentView.avatarImageView)
+        innerContentView.avatarImageView.defaultBackgroundColor = .clear
+        innerContentView.callerNameLabel.text = room.summary.displayName
+        statusText = VectorL10n.callUnsupportedMatrixRtcCall
+        bottomContentView = nil // Expands the size of the status stack.
+    }
+}