video: fbdev: radeon: Remove dead code

This is dead code since 3.15 and can be removed if not
going to be useful further.
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1582042556-21555-1-git-send-email-jrdr.linux@gmail.com

drivers/video/fbdev/aty/radeon_base.c

@@ -849,12 +849,6 @@ static int radeonfb_check_var (struct fb_var_screeninfo *var, struct fb_info *in
 		case 9 ... 16:
 			v.bits_per_pixel = 16;
 			break;
-		case 17 ... 24:
-#if 0 /* Doesn't seem to work */
-			v.bits_per_pixel = 24;
-			break;
-#endif			
-			return -EINVAL;
 		case 25 ... 32:
 			v.bits_per_pixel = 32;
 			break;
@@ -2542,16 +2536,6 @@ static void radeonfb_pci_unregister(struct pci_dev *pdev)
 	if (rinfo->mon2_EDID)
 		sysfs_remove_bin_file(&rinfo->pdev->dev.kobj, &edid2_attr);
 
-#if 0
-	/* restore original state
-	 * 
-	 * Doesn't quite work yet, I suspect if we come from a legacy
-	 * VGA mode (or worse, text mode), we need to do some VGA black
-	 * magic here that I know nothing about. --BenH
-	 */
-        radeon_write_mode (rinfo, &rinfo->init_state, 1);
- #endif
-
 	del_timer_sync(&rinfo->lvds_timer);
 	arch_phys_wc_del(rinfo->wc_cookie);
         unregister_framebuffer(info);