dpkg_build.yaml: Remove useless debiandir from artifacts
dpkg_build artifacts used to include a DEBIAN/ dir containing a bunch of files which didn't even come from the same package.
This commit removes them, to avoid future confusion.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
dpkg_build artifacts used to include a DEBIAN/ dir containing a bunch of files which didn't even come from the same package.
This commit removes them, to avoid future confusion.