The RedHat platforms vary if they come pre-installed with curl or
curl-minimal. For example, Fedora 37 container images have curl, and
centos 9-stream and Rocky images have curl-minimal. If you try and
install curl when curl-minimal is installed, you get an error, and
vice-versa.
Unfortunately package-installs can't really sort this out; we're just
passing a package list to the system package manager. We don't have a
way to say "the curl OR curl-minimal package is fine". As this breaks
builds and is such a common dependency that it's already there, let's
just add a note that curl is required and blank out the package-map.
Change-Id: I9ccebe2dbf3a8682dab60c2070c5f78849e01446
2c4d230d7a