emoved unused pf_render function in subpicture_t.

include/vlc_subpicture.h

@@ -147,8 +147,6 @@ struct subpicture_t
     int          i_alpha;                                  /**< transparency */
      /**@}*/
 
-    /** Pointer to function that renders this subtitle in a picture */
-    void ( *pf_render )  ( vout_thread_t *, picture_t *, const subpicture_t * );
     /** Pointer to function that cleans up the private data of this subtitle */
     void ( *pf_destroy ) ( subpicture_t * );
 

src/video_output/vout_subpictures.c

@@ -713,7 +713,6 @@ subpicture_t *subpicture_New( void )
     p_subpic->b_subtitle = false;
     p_subpic->i_alpha    = 0xFF;
     p_subpic->p_region   = NULL;
-    p_subpic->pf_render  = NULL;
     p_subpic->pf_destroy = NULL;
     p_subpic->p_sys      = NULL;