fbmem: remove redundant assignment to err

Variable err is initialized to a value that is never read and it
is re-assigned later.  The initialization is redundant and can
be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190624223724.13629-1-colin.king@canonical.com

drivers/video/fbdev/core/fbmem.c

@@ -1957,7 +1957,7 @@ int fb_new_modelist(struct fb_info *info)
 	struct list_head *pos, *n;
 	struct fb_modelist *modelist;
 	struct fb_videomode *m, mode;
-	int err = 1;
+	int err;
 
 	list_for_each_safe(pos, n, &info->modelist) {
 		modelist = list_entry(pos, struct fb_modelist, list);