evas: model_save: remove unused label after error handling change

In commit 8272d14927 the error handling was
moved upwards and the need for the goto label removed. Catching up here and
removing the label as well.

src/modules/evas/model_savers/eet/evas_model_save_eet.c

@@ -199,7 +199,6 @@ evas_model_save_file_eet(const Evas_Canvas3D_Mesh *mesh,
                   EINA_TRUE);
    eet_close(ef);
 
- on_error:
    _evas_canvas3d_eet_file_free(eet_file);
 
    eet_shutdown();