Remove leftover import

Author: aurimasc

com.unity.mobile.notifications/Runtime/Android/Plugins/com/unity/androidnotifications/UnityNotificationManager.java

@@ -19,7 +19,6 @@
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
-import android.os.BadParcelableException;
 import android.provider.Settings;
 import android.service.notification.StatusBarNotification;
 import android.util.Log;