Remove `FormTenantResolveContributor` from the `AbpTenantResolveOptions`.

framework/src/Volo.Abp.AspNetCore.MultiTenancy/Volo/Abp/AspNetCore/MultiTenancy/AbpAspNetCoreMultiTenancyModule.cs

@@ -15,7 +15,6 @@ public class AbpAspNetCoreMultiTenancyModule : AbpModule
         Configure<AbpTenantResolveOptions>(options =>
         {
             options.TenantResolvers.Add(new QueryStringTenantResolveContributor());
-            options.TenantResolvers.Add(new FormTenantResolveContributor());
             options.TenantResolvers.Add(new RouteTenantResolveContributor());
             options.TenantResolvers.Add(new HeaderTenantResolveContributor());
             options.TenantResolvers.Add(new CookieTenantResolveContributor());

framework/src/Volo.Abp.AspNetCore.MultiTenancy/Volo/Abp/AspNetCore/MultiTenancy/FormTenantResolveContributor.cs

@@ -1,10 +1,11 @@
-using System.Linq;
+using System;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
 using Volo.Abp.MultiTenancy;
 
 namespace Volo.Abp.AspNetCore.MultiTenancy;
 
+[Obsolete("This may make some features of ASP NET Core unavailable, Will be removed in future versions.")]
 public class FormTenantResolveContributor : HttpTenantResolveContributorBase
 {
     public const string ContributorName = "Form";