Remove unneeded casts of (void *) pointers.

Signed-off-by: Domen Puncer <domen@coderock.org>

--- c/drivers/mtd/chips/map_rom.c	2004-12-02 23:16:12.000000000 +0100
+++ a/drivers/mtd/chips/map_rom.c	2004-12-03 11:14:32.000000000 +0100
@@ -57,7 +57,7 @@ static struct mtd_info *map_rom_probe(st
 
 static int maprom_read (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
 {
-	struct map_info *map = (struct map_info *)mtd->priv;
+	struct map_info *map = mtd->priv;
 
 	map_copy_from(map, buf, from, len);
 	*retlen = len;