fix: small fix

Author: alexmagikov

HwProj.APIGateway/HwProj.APIGateway.API/Startup.cs

@@ -12,8 +12,6 @@
 using IStudentsInfo;
 using Microsoft.AspNetCore.Authentication.JwtBearer;
 using Microsoft.AspNetCore.Builder;
-using Microsoft.AspNetCore.CookiePolicy;
-using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Http.Features;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;