Removing heat-cfntools, not used in rhvm-appliance.
Updates to it are available only through OSP and it's not used within RHV.
See also https://bugzilla.redhat.com/show_bug.cgi?id=1651922
Verified in rhvm-appliance-4.4-20200123.0.el8ev.x86_64
Package heat-cfntools is not installed:
# virt-inspector -a rhvm-appliance-4.4-20200123.0.el8ev.x86_64.qcow2 | grep heat-cfntools || echo "heat-cfntools not installed"
heat-cfntools not installed