Drop horizon-nodejs10-jobs template
Drop horizon-nodejs10-jobs template

As we already added horizon-nodejs14-jobs template in this plugin
and nodejs14 jobs running fine. So let's drop horizon-nodejs10-jobs
template because nodejs10 is already EOL.

Change-Id: I11176ef54ca25b130bc2c1c86b8458cbf960312f

openstack/zaqar-ui,openstack/zaqar-ui,openstack/zaqar-ui,openstack/zaqar-ui