Revert "fix: 取消请求体大小限制"

This reverts commit afc9832fe56452e08a77c0090efc5a3b21659f5f.

src/FileStorage.Host/StartupExtensions.cs

@@ -1,6 +1,5 @@
 using FileStorage.Repository.SqlSugar.Extensions;
 using Microsoft.AspNetCore.Authentication;
-using Microsoft.AspNetCore.Server.Kestrel.Core;
 using Microsoft.Extensions.FileProviders;
 using Serilog;
 using XF.Domain.Dependency;