The old GitHub Enterprise Support Portal is being fully deprecated (#50795)

Author: vgrl

data/reusables/support/zendesk-old-tickets.md

@@ -1,7 +1,7 @@
 {% ifversion ghes %}
 {% note %}
 
-**Note**: If you have previously contacted {% data variables.contact.enterprise_support %} through the GitHub Enterprise Support portal, which is now deprecated, you should use the {% data variables.contact.contact_landing_page_portal %} to open new tickets. You can still view your past tickets at [https://enterprise.githubsupport.com](https://enterprise.githubsupport.com).
+**Note**: If you have previously contacted {% data variables.contact.enterprise_support %} through the GitHub Enterprise Support portal, which is now deprecated, you should use the {% data variables.contact.contact_enterprise_portal %} to open new tickets.
 
 {% endnote %}
 {% endif %}

data/variables/contact.yml

@@ -26,7 +26,7 @@ github_support: 'GitHub Support'
 # The team that provides Premium Support
 premium_support: 'GitHub Premium Support'
 
-# Enterprise Support portal (previously the Zendesk portal at enterprise.githubsupport.com)
+# Enterprise Support portal
 enterprise_portal: 'GitHub Support portal'
 contact_enterprise_portal: '[GitHub Support portal](https://support.github.com)'