Cleanup old.

(Portage version: 2.2.10/cvs/Linux x86_64, signed Manifest commit with key )
Remove old which fixes #507194

(Portage version: 2.2.7/cvs/Linux x86_64, signed Manifest commit with key 4D7043C9)
Cleanup old. Remove ree18.

(Portage version: 2.2.10/cvs/Linux x86_64, signed Manifest commit with key )
Automated update.

(Portage version: 2.2.10/cvs/Linux x86_64, signed Manifest commit with key 0BBEEA1FEA4843A4)