diff --git a/src/Razor/Microsoft.CodeAnalysis.Razor/src/BindTagHelperDescriptorProvider.cs b/src/Razor/Microsoft.CodeAnalysis.Razor/src/BindTagHelperDescriptorProvider.cs
index 8b1ba0a7a9..34d70280a2 100644
--- a/src/Razor/Microsoft.CodeAnalysis.Razor/src/BindTagHelperDescriptorProvider.cs
+++ b/src/Razor/Microsoft.CodeAnalysis.Razor/src/BindTagHelperDescriptorProvider.cs
@@ -189,20 +189,6 @@ namespace Microsoft.CodeAnalysis.Razor
                 });
             });
 
-            // This is no longer supported. This is just here so we can add a diagnostic later on when this matches.
-            builder.BindAttribute(attribute =>
-            {
-                attribute.Documentation = ComponentResources.BindTagHelper_Fallback_Format_Documentation;
-
-                attribute.Name = "format-...";
-                attribute.AsDictionary("format-", typeof(string).FullName);
-
-                // WTE has a bug 15.7p1 where a Tag Helper without a display-name that looks like
-                // a C# property will crash trying to create the toolips.
-                attribute.SetPropertyName("Format");
-                attribute.TypeName = "System.Collections.Generic.Dictionary<string, string>";
-            });
-
             return builder.Build();
         }