update notification background show multiple times

NexilisLite/NexilisLite/Source/APIS.swift

@@ -1248,7 +1248,7 @@ public class APIS: NSObject {
                     var id = Utils.getConnectionID()
                     try API.initConnection(sAPIK: Nexilis.sAPIKey, cbiI: Callback(), sTCPAddr: Nexilis.ADDRESS, nTCPPort: Nexilis.PORT, sUserID: id, sStartWH: "09:00")
                 }
-                listIdentifierNotif.removeAll()
+//                listIdentifierNotif.removeAll()
                 Nexilis.afterConnect = false
             } catch {
             }

NexilisLite/NexilisLite/Source/View/Call/QmeraVideoViewController.swift

@@ -447,8 +447,6 @@ class QmeraVideoViewController: UIViewController {
                 }
             }
         } else {
-            let systemSoundID: SystemSoundID = 1254
-            AudioServicesPlaySystemSound(systemSoundID)
             labelIncomingOutgoing.text = "Incoming video call".localized() + "..."
         }
         labelIncomingOutgoing.font = UIFont.systemFont(ofSize: 12)