gpg: Remove --compress-keys and --compress-sigs feature.
* g10/gpg.c (oCompressKeys, oCompressSigs): Remove. (opts): Turn --compress-keys and --compress-signs in NOPs. * g10/options.h (opt): Remove fields compress_keys and compress_sigs. * g10/export.c (do_export): Remove compress_keys feature. * g10/sign.c (sign_file): Remove compress_sigs feature.
These features are disabled in GnuPG since the very early days and
they fulfill no real purpose. For now we keep the command line
options as dummys.