DBusConnection.removeFilter

Removes a filter.

Note that since filters run in a different thread, there is a race condition where it is possible that the filter will be running even after calling [gio.dbus_connection.DBusConnection.removeFilter], so you cannot just free data that the filter might be using. Instead, you should pass a #GDestroyNotify to [gio.dbus_connection.DBusConnection.addFilter], which will be called when it is guaranteed that the data is no longer needed.