code clean up

Author: damienbod

content/BlazorBffAzureB2C/Server/MsGraphClaimsTransformation.cs

@@ -1,7 +1,5 @@
 using BlazorBffAzureB2C.Server.Services;
-using System.Linq;
 using System.Security.Claims;
-using System.Threading.Tasks;
 
 namespace BlazorBffAzureB2C.Server;