remove existing content

Author: jmagak

titles/rel-notes-rhdh/title-rhdh-release-notes.adoc

@@ -12,9 +12,6 @@ include::artifacts/attributes.adoc[]
 //customer support links
 include::artifacts/snip-customer-support-info.adoc[]
 
-//includes
-include::modules/release-notes/con-release-notes-overview.adoc[leveloffset=+1]
-
 
 include::assemblies/assembly-release-notes-new-features.adoc[leveloffset=+1]