OSDOCS-11370: Fix attributes

Author: bmcelvee

_attributes/attributes-openshift-dedicated.adoc

@@ -47,8 +47,6 @@
 //Formerly known as CodeReady Containers and CodeReady Workspaces
 :openshift-local-productname: Red Hat OpenShift Local
 :openshift-dev-spaces-productname: Red Hat OpenShift Dev Spaces
-:product-title: ROSA 
-:product-title-first: Red Hat OpenShift Service on AWS
 :hcp: hosted control planes
 :hcp-title: ROSA with HCP
 :hcp-title-first: {product-title} (ROSA) with {hcp} (HCP)