Apply DefaultLocation

Author: sergey-shandar

src/ResourceManager/Common/Commands.Common.Strategies/AsyncCmdletExtensions.cs

@@ -54,7 +54,8 @@ public static async Task<TModel> RunAsync<TModel>(
             // read current Azure state.
             var current = await config.GetStateAsync(client, asyncCmdlet.CancellationToken);
             // update location.
-            parameters.Location = current.UpdateLocation(parameters.Location, config);
+            parameters.Location =
+                parameters.Location ?? current.GetLocation(config) ?? parameters.DefaultLocation;
             // update a DAG of configs.
             config = await parameters.CreateConfigAsync();
             // create a target.
@@ -77,11 +78,6 @@ public static async Task<TModel> RunAsync<TModel>(
             return newState.Get(config) ?? current.Get(config);
         }
 
-        static string UpdateLocation(
-            this IState current, string location, IResourceConfig config)
-            => location ?? current.GetLocation(config) ?? "eastus";
-
-
         static string ToPowerShellString(object value)
         {
             if (value == null)