[SRVCOM-2271] Update distributed tracing prerequisites

Author: ochromy

modules/serverless-open-telemetry.adoc

@@ -11,7 +11,6 @@
 .Prerequisites
 
 * You have access to an {ocp-product-title} account with cluster administrator access.
-* You have not yet installed the {ServerlessOperatorName}, Knative Serving, and Knative Eventing. These must be installed after the {DTProductName} installation.
 * You have installed {DTProductName} by following the {ocp-product-title} "Installing distributed tracing" documentation.
 * You have installed the OpenShift CLI (`oc`).
 * You have created a project or have access to a project with the appropriate roles and permissions to create applications and other workloads in {ocp-product-title}.