This reverts commit 57f5909285. This was
originally added so that a toolchain could be built on a newer system but
run on an older one. With the benefit of hindsight that is probably the
wrong approach. The best way of achieving that goal would be to use
docker/podman container to provide an environment that is the same as
the oldest supported system and build inside that. The resulting
toolchain should be compatible with the old system and the new one.
Closes#2094
Signed-off-by: Chris Packham <judge.packham@gmail.com>
e7a88ff52d