[Calling][Refactor] run ktlintformat

azure-communication-ui/demo-app/src/calling/java/com/azure/android/communication/ui/callingcompositedemoapp/CallLauncherActivity.kt

@@ -22,7 +22,6 @@ import android.view.Menu
 import android.view.MenuItem
 import android.view.View
 import android.widget.LinearLayout
-import androidx.activity.viewModels
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.LifecycleCoroutineScope