core: Remove stub to try implementing gpg < 2.1 support for createkey.
core: Remove stub to try implementing gpg < 2.1 support for createkey.

* src/engine-gpg.c (gpg_createkey_legacy): Remove.
(gpg_genkey): Remove call.

Signed-off-by: Werner Koch <13bd1fc5137f503b0a8355ad400e7a87ebb45b25@gnupg.org>

gpg/gpgme,gpg/gpgme,gpg/gpgme,gpg/gpgme,gpg/gpgme,gpg/gpgme,gpg/gpgme