backlight: omap1: Remove unused struct omap_backlight_config.set_power

The callback set_power in struct omap_backlight_config is not
implemented anywhere. Remove it from the structure and driver.

Signed-off-by: Thomas Zimmermann <[e-mail]>
Reviewed-by: Sam Ravnborg <[e-mail]>
Reviewed-by: Daniel Thompson <[e-mail]>
Reviewed-by: Dan Carpenter <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Lee Jones <[e-mail]>

drivers/video/backlight/omap1_bl.c

···
 
 static void omapbl_blank(struct omap_backlight *bl, int mode)
 {
-	if (bl->pdata->set_power)
-		bl->pdata->set_power(bl->dev, mode);
-
 	switch (mode) {
 	case FB_BLANK_NORMAL:
 	case FB_BLANK_VSYNC_SUSPEND:

include/linux/platform_data/omap1_bl.h

···
 
 struct omap_backlight_config {
 	int default_intensity;
-	int (*set_power)(struct device *dev, int state);
 };
 
 #endif