Tidy up some logs that have a prefix. (#4443)

We haven't needed these for ages, Rust adds them to the log lines.

ElementX/Sources/Screens/Authentication/SoftLogoutScreen/SoftLogoutScreenCoordinator.swift

@@ -61,7 +61,7 @@ final class SoftLogoutScreenCoordinator: CoordinatorProtocol {
         viewModel.actions
             .sink { [weak self] action in
                 guard let self else { return }
-                MXLog.info("[SoftLogoutCoordinator] SoftLogoutViewModel did complete with result: \(action).")
+                MXLog.info("Did complete with result: \(action).")
 
                 switch action {
                 case .login(let password):

ElementX/Sources/Screens/CallScreen/CallScreenViewModel.swift

@@ -226,7 +226,7 @@ class CallScreenViewModel: CallScreenViewModelType, CallScreenViewModelProtocol
     
     private func handleOutputDeviceSelected(deviceID: String) {
         let isEarpiece = deviceID == Self.earpieceID
-        MXLog.info("[handleOutputDeviceSelected] is earpiece: \(isEarpiece)")
+        MXLog.info("Is earpiece: \(isEarpiece)")
         UIDevice.current.isProximityMonitoringEnabled = isEarpiece
     }