f2fs: don't call fscrypt_get_encryption_info() explicitly in f2fs_tmpfile()

In f2fs_tmpfile(), parent inode's encryption info is only used when
inheriting encryption context to its child inode, however, we have
already called fscrypt_get_encryption_info() in fscrypt_inherit_context()
to get the encryption info, so just removing unneeded one in
f2fs_tmpfile().
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/namei.c

@@ -874,12 +874,6 @@ static int f2fs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
 	if (!f2fs_is_checkpoint_ready(sbi))
 		return -ENOSPC;
 
-	if (IS_ENCRYPTED(dir) || DUMMY_ENCRYPTION_ENABLED(sbi)) {
-		int err = fscrypt_get_encryption_info(dir);
-		if (err)
-			return err;
-	}
-
 	return __f2fs_tmpfile(dir, dentry, mode, NULL);
 }