build-sys: Work around #1546

While we work to fix the base image (again).

Signed-off-by: Colin Walters <walters@verbum.org>

Author: cgwalters

Dockerfile

@@ -93,5 +93,7 @@ fi
 # tests to know we're doing upstream CI.
 touch /usr/lib/.bootc-dev-stamp
 # And test our own linting
+## Workaround for https://github.com/bootc-dev/bootc/issues/1546
+rm -rf /root/buildinfo
 bootc container lint --fatal-warnings
 EORUN