gitlab-ci: drop most autotools builds

With autotools this close to being not supported anymore, let's not
waste half of the CI cycles on it. The default build will catch most
issues, and the rest can be tested by the old Travis.

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2 files changed