ext3: get rid of the duplicate code on ext3_fill_super

Setting s_mount_opt to 0 is unnecessary because we use kzalloc() for sb
allocation. s_resuid and s_resgid are set again few lines below based on
values in on disk superblock.
Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/ext3/super.c

@@ -1661,9 +1661,6 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 		return -ENOMEM;
 	}
 	sb->s_fs_info = sbi;
-	sbi->s_mount_opt = 0;
-	sbi->s_resuid = make_kuid(&init_user_ns, EXT3_DEF_RESUID);
-	sbi->s_resgid = make_kgid(&init_user_ns, EXT3_DEF_RESGID);
 	sbi->s_sb_block = sb_block;
 
 	blocksize = sb_min_blocksize(sb, EXT3_MIN_BLOCK_SIZE);