drm/omap: sdi: remove legacy set_datapairs

Non-DT booting is no longer supported, so remove legacy code.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

drivers/gpu/drm/omapdrm/dss/omapdss.h

@@ -490,8 +490,6 @@ struct omapdss_sdi_ops {
 			    struct videomode *vm);
 	void (*get_timings)(struct omap_dss_device *dssdev,
 			    struct videomode *vm);
-
-	void (*set_datapairs)(struct omap_dss_device *dssdev, int datapairs);
 };
 
 struct omapdss_dvi_ops {
@@ -641,10 +639,6 @@ struct omap_dss_device {
 			u8 data_lines;
 		} rfbi;
 
-		struct {
-			u8 datapairs;
-		} sdi;
-
 		struct {
 			int module;
 		} dsi;

drivers/gpu/drm/omapdrm/dss/sdi.c

@@ -252,11 +252,6 @@ static int sdi_check_timings(struct omap_dss_device *dssdev,
 	return 0;
 }
 
-static void sdi_set_datapairs(struct omap_dss_device *dssdev, int datapairs)
-{
-	sdi.datapairs = datapairs;
-}
-
 static int sdi_init_regulator(void)
 {
 	struct regulator *vdds_sdi;
@@ -326,8 +321,6 @@ static const struct omapdss_sdi_ops sdi_ops = {
 	.check_timings = sdi_check_timings,
 	.set_timings = sdi_set_timings,
 	.get_timings = sdi_get_timings,
-
-	.set_datapairs = sdi_set_datapairs,
 };
 
 static void sdi_init_output(struct platform_device *pdev)