diff --git a/src/Microsoft.AspNet.Abstractions/Security/AuthenticationManager.cs b/src/Microsoft.AspNet.Abstractions/Security/AuthenticationManager.cs
index 36ed704cc9..c72e625ba8 100644
--- a/src/Microsoft.AspNet.Abstractions/Security/AuthenticationManager.cs
+++ b/src/Microsoft.AspNet.Abstractions/Security/AuthenticationManager.cs
@@ -12,7 +12,6 @@ namespace Microsoft.AspNet.Abstractions.Security
         public abstract HttpContext HttpContext { get; }
 
         public abstract IEnumerable<AuthenticationDescription> GetAuthenticationTypes();
-        public abstract IEnumerable<AuthenticationDescription> GetAuthenticationTypes(Func<AuthenticationDescription, bool> predicate);
 
         public abstract AuthenticationResult Authenticate(string authenticationType); // TODO: Is sync a good idea?
         public abstract IEnumerable<AuthenticationResult> Authenticate(IList<string> authenticationTypes);
diff --git a/src/Microsoft.AspNet.PipelineCore/Security/DefaultAuthenticationManager.cs b/src/Microsoft.AspNet.PipelineCore/Security/DefaultAuthenticationManager.cs
index 4030e67d21..025e7d243b 100644
--- a/src/Microsoft.AspNet.PipelineCore/Security/DefaultAuthenticationManager.cs
+++ b/src/Microsoft.AspNet.PipelineCore/Security/DefaultAuthenticationManager.cs
@@ -44,11 +44,6 @@ namespace Microsoft.AspNet.PipelineCore.Security
         }
 
         public override IEnumerable<AuthenticationDescription> GetAuthenticationTypes()
-        {
-            return GetAuthenticationTypes(_ => true);
-        }
-
-        public override IEnumerable<AuthenticationDescription> GetAuthenticationTypes(Func<AuthenticationDescription, bool> predicate)
         {
             var descriptions = new List<AuthenticationDescription>();
             var handler = HttpAuthentication.Handler;