chore: this commit removes unnecessary global usings.

Author: https-richardy

Source/HttpsRichardy.Federation.Infrastructure.IoC/Usings.cs

@@ -3,7 +3,6 @@
 
 global using Microsoft.Extensions.DependencyInjection;
 global using Microsoft.Extensions.Configuration;
-global using Microsoft.Extensions.Hosting;
 
 global using HttpsRichardy.Federation.Common.Configuration;
 global using HttpsRichardy.Federation.Domain.Collections;
@@ -38,4 +37,3 @@
 
 global using MongoDB.Driver;
 global using FluentValidation;
-global using FluentValidation.AspNetCore;