Merge branch 'rel/2.0.0-preview2' into dev

Author: HaoK

src/Microsoft.AspNetCore.Authentication.Core/AuthenticationCoreServiceCollectionExtensions.cs

@@ -4,8 +4,6 @@
 using System;
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.Extensions.DependencyInjection.Extensions;
-using Microsoft.Extensions.Configuration;
-using Microsoft.Extensions.Options.Infrastructure;
 
 namespace Microsoft.Extensions.DependencyInjection
 {
@@ -30,7 +28,6 @@ public static IServiceCollection AddAuthenticationCore(this IServiceCollection s
             services.TryAddSingleton<IClaimsTransformation, NoopClaimsTransformation>(); // Can be replaced with scoped ones that use DbContext
             services.TryAddScoped<IAuthenticationHandlerProvider, AuthenticationHandlerProvider>();
             services.TryAddSingleton<IAuthenticationSchemeProvider, AuthenticationSchemeProvider>();
-            services.AddTransient<ConfigureDefaultOptions<AuthenticationOptions>, DefaultConfigureOptions>();
             return services;
         }
 
@@ -55,13 +52,5 @@ public static IServiceCollection AddAuthenticationCore(this IServiceCollection s
             services.Configure(configureOptions);
             return services;
         }
-
-        private class DefaultConfigureOptions : ConfigureDefaultOptions<AuthenticationOptions>
-        {
-            public DefaultConfigureOptions(IConfiguration config) :
-                base(options => config.GetSection("Microsoft:AspNetCore:Authentication").Bind(options))
-            { }
-        }
-
     }
 }

src/Microsoft.AspNetCore.Authentication.Core/Microsoft.AspNetCore.Authentication.Core.csproj

@@ -15,7 +15,6 @@
     <ProjectReference Include="..\Microsoft.AspNetCore.Authentication.Abstractions\Microsoft.AspNetCore.Authentication.Abstractions.csproj" />
     <ProjectReference Include="..\Microsoft.AspNetCore.Http\Microsoft.AspNetCore.Http.csproj" />
     <ProjectReference Include="..\Microsoft.AspNetCore.Http.Extensions\Microsoft.AspNetCore.Http.Extensions.csproj" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="$(AspNetCoreVersion)" />
     <PackageReference Include="Microsoft.Extensions.TaskCache.Sources" Version="$(AspNetCoreVersion)" PrivateAssets="All" />
   </ItemGroup>