gpg: Cleanup of dek_to_passphrase function (part 2).
* g10/passphrase.c (passphrase_get): Remove arg KEYID. Change arg MODE to NOCACHE. (passphrase_to_dek): Remove args KEYID and PUBKEY_ALGO. Split arg MODE into CREATE and NOCACHE. Change all callers and adjust stubs. (passphrase_clear_cache): Remove args KEYID and ALGO. They are not used. Change caller.
- Signed-off-by: Werner Koch <wk@gnupg.org>