cifs: remove redundant return in cifs_creation_time_get

There is a redundant return in function cifs_creation_time_get
that appears to be old vestigial code than can be removed. So
remove it.

Detected by CoverityScan, CID#1361924 ("Structurally dead code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Steve French <smfrench@gmail.com>

fs/cifs/xattr.c

@@ -188,8 +188,6 @@ static int cifs_creation_time_get(struct dentry *dentry, struct inode *inode,
 	pcreatetime = (__u64 *)value;
 	*pcreatetime = CIFS_I(inode)->createtime;
 	return sizeof(__u64);
-
-	return rc;
 }