video: hgafb: remove unneeded comparison

var->yoffset is of the type __u32, hence the comparison will always
be false.

Signed-off-by: Sudip Mukherjee <[e-mail]>
Signed-off-by: Tomi Valkeinen <[e-mail]>

drivers/video/fbdev/hgafb.c

···
 			     struct fb_info *info)
 {
 	if (var->vmode & FB_VMODE_YWRAP) {
-		if (var->yoffset < 0 || 
-		    var->yoffset >= info->var.yres_virtual ||
+		if (var->yoffset >= info->var.yres_virtual ||
 		    var->xoffset)
 			return -EINVAL;
 	} else {