s3: libsmb: In cli_ntrename_internal_send() (SMBntrename) check for DFS dst pathname.

s3: libsmb: In cli_ntrename_internal_send() (SMBntrename) check for DFS dst pathname.

See smbtorture3: SMB1-DFS-PATHS: test_smb1_ntrename_rename().
and smbtorture3: SMB1-DFS-PATHS: test_smb1_ntrename_hardlink().

Remove the old code that stripped a DFS name from the
destination filename, and go through smb1_dfs_share_path()
as we did for fname_src in the last commit.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <npower@samba.org>