remove old annotation about pac provisioning

Signed-off-by: Ernesto González <ergonzal@redhat.com>

Author: ernesgonzalez33

docs/modules/ROOT/pages/how-tos/configuring/configuration-as-code.adoc

@@ -79,7 +79,6 @@ kind: Component
 metadata:
   annotations:
     image.redhat.com/generate: "true"
-    appstudio.openshift.io/pac-provision: request
     build.appstudio.openshift.io/request: configure-pac
   name: example-component
 spec: