* src/engine.c (_gpgme_engine_op_trustlist): Remove.
* src/libgpgme.vers (gpgme_op_trustlist_end)
(gpgme_op_trustlist_next)
(gpgme_op_trustlist_start): Remove.
* src/gpgme.def: Ditto.
* src/key.c (otrust_to_string)
(validity_to_string)
(capabilities_to_string)
(get_keysig): Remove