Reverted keyboard animation fix

Author: martinmitrevski

Sources/StreamChatSwiftUI/ChatChannelList/ChatChannelListViewModel.swift

@@ -224,9 +224,6 @@ open class ChatChannelListViewModel: ObservableObject, ChatChannelListController
         let newValue = numberOfScreens > 1
         if newValue != hideTabBar {
             hideTabBar = newValue
-            if !hideTabBar {
-                selectedChannel = nil
-            }
         }
     }