Remove Workaround for US Gov Bug (#987)

* Update client.go

* Update client.go

* fix format

* Update client.go

internal/services/applications/client/client.go

@@ -2,7 +2,6 @@ package client
 
 import (
 	"github.com/hashicorp/terraform-provider-azuread/internal/common"
-	"github.com/manicminer/hamilton/environments"
 	"github.com/manicminer/hamilton/msgraph"
 )
 
@@ -18,14 +17,6 @@ func NewClient(o *common.ClientOptions) *Client {
 
 	applicationTemplatesClient := msgraph.NewApplicationTemplatesClient(o.TenantID)
 
-	if o.Environment.MsGraph.Endpoint == environments.MsGraphUSGovL4Endpoint {
-		//Short term fix while we wait for Microsoft to fix an intermittent 504 error causing an applicationTemplate instantiate
-		//call to produce a 504. However MS api doesnt cancel request and you end up creating multiple app registrations and service principals
-		//as the client retries. Bug is not present in the beta API.
-		//Expected fix Feb 2023
-		applicationTemplatesClient.BaseClient.ApiVersion = msgraph.VersionBeta
-	}
-
 	o.ConfigureClient(&applicationTemplatesClient.BaseClient)
 
 	directoryObjectsClient := msgraph.NewDirectoryObjectsClient(o.TenantID)