Revert "Override live test location default to westus (Azure#18307)" (Azure#18448)

This reverts commit 9ba0432.

Author: benbp

eng/pipelines/templates/jobs/archetype-sdk-client.yml

@@ -40,14 +40,8 @@ parameters:
     default:
       Public:
         SubscriptionConfiguration: $(sub-config-azure-cloud-test-resources)
-        # TODO: Migrate location override into azure-sdk-tools eng/common
-        # See https://github.com/Azure/azure-sdk-tools/issues/3398
-        Location: 'westus'
       Preview:
         SubscriptionConfiguration: $(sub-config-azure-cloud-test-resources-preview)
-        # TODO: Migrate location override into azure-sdk-tools eng/common
-        # See https://github.com/Azure/azure-sdk-tools/issues/3398
-        Location: 'westus'
       Canary:
         SubscriptionConfiguration: $(sub-config-azure-cloud-test-resources)
         Location: 'centraluseuap'