Drop ClonesConnectivyAndDataCheck from pki-healthcheck

pki-healthcheck is a tool to check the status of an instance or
a node in a cluster so that if it reports a problem the admin can
fix it or the monitoring service can replace it with a new node.

The ClonesConnectivyAndDataCheck on the other hand is a plugin
that checks the connectivity from the instance to other clones.
This plugin will report a problem if another clone is down even
though the instance itself is fine, which would be misleading.
Since it doesn't really fit the purpose of pki-healthcheck this
plugin has been dropped.

.github/workflows/ca-renewal-system-certs-hsm-test.yml

@@ -205,7 +205,6 @@ jobs:
           echo "Expired Cert: sslserver" >> expected
           echo "Expired Cert: subsystem" >> expected
           echo "Expired Cert: audit_signing" >> expected
-          echo "Internal server error 404 Client Error:  for url: http://pki.example.com:8080/ca/rest/securityDomain/domainInfo" >> expected
           echo "Internal server error 404 Client Error:  for url: https://pki.example.com:8443/ca/admin/ca/getStatus" >> expected
           diff expected stderr
 

.github/workflows/ca-renewal-system-certs-test.yml

@@ -168,7 +168,6 @@ jobs:
           echo "Expired Cert: sslserver" >> expected
           echo "Expired Cert: subsystem" >> expected
           echo "Expired Cert: audit_signing" >> expected
-          echo "Internal server error 404 Client Error:  for url: http://pki.example.com:8080/ca/rest/securityDomain/domainInfo" >> expected
           echo "Internal server error 404 Client Error:  for url: https://pki.example.com:8443/ca/admin/ca/getStatus" >> expected
           diff expected stderr