mtd: lpddr_cmds: remove unused words variable

clang with W=1 reports
drivers/mtd/lpddr/lpddr_cmds.c:409:31: error: variable
  'words' set but not used [-Werror,-Wunused-but-set-variable]
        int ret, wbufsize, word_gap, words;
                                     ^
This variable is not used so remove it.

Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230328000620.1778033-1-trix@redhat.com

Author: Tom Rix

drivers/mtd/lpddr/lpddr_cmds.c

@@ -406,7 +406,7 @@ static int do_write_buffer(struct map_info *map, struct flchip *chip,
 {
 	struct lpddr_private *lpddr = map->fldrv_priv;
 	map_word datum;
-	int ret, wbufsize, word_gap, words;
+	int ret, wbufsize, word_gap;
 	const struct kvec *vec;
 	unsigned long vec_seek;
 	unsigned long prog_buf_ofs;
@@ -421,10 +421,7 @@ static int do_write_buffer(struct map_info *map, struct flchip *chip,
 	}
 	/* Figure out the number of words to write */
 	word_gap = (-adr & (map_bankwidth(map)-1));
-	words = (len - word_gap + map_bankwidth(map) - 1) / map_bankwidth(map);
-	if (!word_gap) {
-		words--;
-	} else {
+	if (word_gap) {
 		word_gap = map_bankwidth(map) - word_gap;
 		adr -= word_gap;
 		datum = map_word_ff(map);