Remove references to rate-limiting.

Author: JStickler

modules/ossm-servicemesh-overview.adoc

@@ -10,4 +10,4 @@ Module included in the following assemblies:
 
 Microservice architectures split the work of enterprise applications into modular services, which can make scaling and maintenance easier. However, as an enterprise application built on a microservice architecture grows in size and complexity, it becomes difficult to understand and manage. {ProductShortName} can address those architecture problems by capturing or intercepting traffic between services and can modify, redirect, or create new requests to other services.
 
-{ProductShortName}, which is based on the open source link:https://istio.io/[Istio project], provides an easy way to create a network of deployed services that provides discovery, load balancing, service-to-service authentication, failure recovery, metrics, and monitoring. A service mesh also provides more complex operational functionality, including A/B testing, canary releases, rate limiting, access control, and end-to-end authentication.
+{ProductShortName}, which is based on the open source link:https://istio.io/[Istio project], provides an easy way to create a network of deployed services that provides discovery, load balancing, service-to-service authentication, failure recovery, metrics, and monitoring. A service mesh also provides more complex operational functionality, including A/B testing, canary releases, access control, and end-to-end authentication.

modules/ossm-understanding-service-mesh.adoc

@@ -25,6 +25,5 @@ Based on the open source link:https://istio.io/[Istio] project, {ProductName} ad
 
 * A/B testing
 * Canary releases
-* Rate limiting
 * Access control
 * End-to-end authentication