OSD: remove unused (and obtained unsafely) SPU parameter

src/osd/osd_widgets.c

@@ -42,7 +42,7 @@
 static void DrawRect( subpicture_t *, int, int, int, int, short );
 static void DrawTriangle( subpicture_t *, int, int, int, int, short );
 static int  CreatePicture( spu_t *, subpicture_t *, int, int, int, int );
-static subpicture_t *osd_CreateWidget( spu_t *, int );
+static subpicture_t *osd_CreateWidget( int );
 
 /*****************************************************************************
  * Draws a rectangle at the given position in the subpic.
@@ -190,13 +190,11 @@ static int CreatePicture( spu_t *p_spu, subpicture_t *p_subpic,
 /*****************************************************************************
  * Creates and initializes an OSD widget.
  *****************************************************************************/
-subpicture_t *osd_CreateWidget( spu_t *p_spu, int i_channel )
+static subpicture_t *osd_CreateWidget( int i_channel )
 {
     subpicture_t *p_subpic;
     mtime_t i_now = mdate();
 
-    VLC_UNUSED(p_spu);
-
     /* Create and initialize a subpicture */
     p_subpic = subpicture_New();
     if( p_subpic == NULL ) return NULL;
@@ -223,7 +221,7 @@ int osd_Slider( vlc_object_t *p_this, spu_t *p_spu,
     int i_x_margin, i_y_margin, i_x, i_y, i_width, i_height;
     (void)p_this;
 
-    p_subpic = osd_CreateWidget( p_spu, i_channel );
+    p_subpic = osd_CreateWidget( i_channel );
     if( p_subpic == NULL )
     {
         return VLC_EGENERIC;
@@ -286,7 +284,7 @@ int osd_Icon( vlc_object_t *p_this, spu_t *p_spu,
     int i_x_margin, i_y_margin, i_x, i_y, i_width, i_height;
     (void)p_this;
 
-    p_subpic = osd_CreateWidget( p_spu, i_channel );
+    p_subpic = osd_CreateWidget( i_channel );
     if( p_subpic == NULL )
     {
         return VLC_EGENERIC;