f2fs: remove redundant goto statement in f2fs_read_single_page()

After the commit "0a4ee518", this "goto" statement was redundant,
remote it for clean code.
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/data.c

@@ -2173,7 +2173,6 @@ static int f2fs_read_single_page(struct inode *inode, struct page *page,
 	f2fs_update_iostat(F2FS_I_SB(inode), NULL, FS_DATA_READ_IO,
 							F2FS_BLKSIZE);
 	*last_block_in_bio = block_nr;
-	goto out;
 out:
 	*bio_ret = bio;
 	return ret;