build: Change make distcheck configure and temp. remove gpgconf.scm.
* Makefile.am (DISTCHECK_CONFIGURE_FLAGS): Also test gpgtar and wks-tools. Disable ntbtls. * tests/openpgp/Makefile.am (XTESTS): Temporary remove gpgconf.scm.
- Signed-off-by: Werner Koch <wk@gnupg.org>