Add post_type_archive_title() in archive.php
Revert "Add post_type_archive_title() in archive.php"

This reverts commit cc6191e637abab7474e3acdee1141dc0401bb220.
Revert "Revert "Add post_type_archive_title() in archive.php""

This reverts commit 604ccecfa99ea66c861088cc095cdb356d9cda75.