ext4: remove unused variable in ext4_update_super()

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

fs/ext4/resize.c

@@ -1197,7 +1197,7 @@ static void ext4_update_super(struct super_block *sb,
 	struct ext4_new_group_data *group_data = flex_gd->groups;
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	struct ext4_super_block *es = sbi->s_es;
-	int i, ret;
+	int i;
 
 	BUG_ON(flex_gd->count == 0 || group_data == NULL);
 	/*