Remove AWS SRE reference

Author: mletalie

rosa_architecture/rosa-understanding.adoc

@@ -10,7 +10,7 @@ Learn about {product-title} (ROSA), interacting with ROSA using {cluster-manager
 [id="rosa-understanding-about_{context}"]
 == About ROSA
 
-ROSA is a fully-managed, turnkey application platform that allows you to focus on delivering value to your customers by building and deploying applications. Red Hat and AWS Site reliability engineering (SRE) experts manage the underlying platform so you do not have to worry about the complexity of infrastructure management. ROSA provides seamless integration with a wide range of AWS compute, database, analytics, machine learning, networking, mobile, and other services to further accelerate the building and delivering of differentiating experiences to your customers.
+ROSA is a fully-managed, turnkey application platform that allows you to focus on delivering value to your customers by building and deploying applications. Red Hat site reliability engineering (SRE) experts manage the underlying platform so you do not have to worry about the complexity of infrastructure management. ROSA provides seamless integration with a wide range of AWS compute, database, analytics, machine learning, networking, mobile, and other services to further accelerate the building and delivering of differentiating experiences to your customers.
 
 You subscribe to the service directly from your AWS account. After the clusters are created, you can operate your clusters with the OpenShift web console or through {cluster-manager-first}. The ROSA service also uses OpenShift APIs and command-line interface (CLI) tools. These tools provide a standardized OpenShift experience to use your existing skills and tools knowledge.