Merge pull request #90846 from michaelryanmcneill/OSDOCS-13731

OSDOCS-13731: removing us-west-1

Author: EricPonvelle

rosa_hcp/rosa-hcp-egress-lockdown-install.adoc

@@ -12,7 +12,6 @@ Creating a {product-title} cluster with egress lockdown provides a way to enhanc
 ====
 You can only use egress lockdown on clusters that use the following AWS regions:
 
-* `us-west-1` 
 * `us-west-2`
 * `us-east-1` 
 * `us-east-2`