ivi-shell: remove ivi_layout_get_screen_output API

The controller plugins use IVI Layout API with weston outputs.
Therefore, this API is not required.

Signed-off-by: Emre Ucan <eucan@de.adit-jv.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Acked-by: Wataru Natsume <wnatsume@jp.adit-jv.com>

ivi-shell/ivi-layout-export.h

@@ -587,16 +587,6 @@ struct ivi_layout_interface {
 					   struct ivi_layout_layer **pLayer,
 					   const int32_t number);
 
-	/**
-	 * \brief get weston_output from ivi_layout_screen.
-	 *
-	 * \return (struct weston_output *)
-	 *              if the method call was successful
-	 * \return NULL if the method call was failed
-	 */
-	struct weston_output *(*screen_get_output)(struct ivi_layout_screen *);
-
-
 	/**
 	 * transision animation for layer
 	 */

ivi-shell/ivi-layout.c

@@ -2012,12 +2012,6 @@ ivi_layout_screen_set_render_order(struct weston_output *output,
 	return IVI_SUCCEEDED;
 }
 
-static struct weston_output *
-ivi_layout_screen_get_output(struct ivi_layout_screen *iviscrn)
-{
-	return iviscrn->output;
-}
-
 /**
  * This function is used by the additional ivi-module because of dumping ivi_surface sceenshot.
  * The ivi-module, e.g. ivi-controller.so, is in wayland-ivi-extension of Genivi's Layer Management.
@@ -2435,7 +2429,6 @@ static struct ivi_layout_interface ivi_layout_interface = {
 	.get_screens_under_layer	= ivi_layout_get_screens_under_layer,
 	.screen_add_layer		= ivi_layout_screen_add_layer,
 	.screen_set_render_order	= ivi_layout_screen_set_render_order,
-	.screen_get_output		= ivi_layout_screen_get_output,
 
 	/**
 	 * animation