Update the admonitions in *Updating the global pull secret*

Author: mburke5678

modules/images-update-global-pull-secret.adoc

@@ -30,11 +30,6 @@ For more information link:https://access.redhat.com/documentation/en-us/openshif
 ====
 endif::image-pull-secrets[]
 
-[WARNING]
-====
-Cluster resources must adjust to the new pull secret, which can temporarily limit the usability of the cluster.
-====
-
 .Prerequisites
 
 * You have access to the cluster as a user with the `cluster-admin` role.