w32: Expect gpgme-w32spawn.exe only in the gpgme installation dir.
* src/w32-util.c (find_program_at_standard_place): Remove. (_gpgme_get_gpg_path): Make the search order more explicit. (_gpgme_get_gpgconf_path): Ditto. (_gpgme_get_w32spawn_path): Search only in the inst_dir.
This tries to avoid possible unclear bug reports by removing the
fallback to the current gpg4win installation directory for the gpgme
helper. It is expected that users of gpgme installing their own gpgme
version also install the matching helper.
- Signed-off-by: Werner Koch <wk@gnupg.org>