rpm2kit: drop unnecessary "--all" argument

In dnf4, "--all" is the long way of writing "*", which is also the
default if no argument is specified.

It's no longer supported in dnf5, so just get rid of it.

Signed-off-by: Ben Cressey <bcressey@amazon.com>

twoliter/embedded/rpm2kit

@@ -40,7 +40,7 @@ for pkg in ${PACKAGES} ; do
 done
 
 createrepo_c "${KIT_DIR}"
-dnf --disablerepo '*' --repofrompath "kit,file:///${KIT_DIR}" repoquery --all
+dnf --disablerepo '*' --repofrompath "kit,file:///${KIT_DIR}" repoquery
 
 WORK_DIR="$(mktemp -d)"