Remove makecert-generated certificates from repo

Move documentation from certificates to Documentation/archives as a reference
for how we used to use makecert. The documentation might be useful in testing,
but the certificates themselves are removed as they're expired and no longer work.

Documentation/archive/archive-makecert-certificate-generation.md

@@ -1,6 +1,15 @@
-Certificate generation
+(Archive) Certificate generation with makecert
 =======================
 
+## This document is now deprecated
+
+This document is kept as a reference for how to generate certificates using makecert.exe. We do not use makecert-generated certificates for tests anymore.  
+
+Certificates are now generated using Bridge [CertificateResources](https://github.com/dotnet/wcf/blob/master/Documentation/certificate-generation-resources.md).
+
+------
+
+
 This file describes how the certificates were created
 and how they are used.  Basic steps are at:
     https://msdn.microsoft.com/en-US/library/Ff648498.aspx

src/System.Private.ServiceModel/tools/test/SelfHostWcfService/WcfService.csproj

@@ -119,9 +119,6 @@
       <Name>WcfTestBridgeCommon</Name>
     </ProjectReference>
   </ItemGroup>
-  <ItemGroup>
-    <Content Include="Certificates\README.md" />
-  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Target Name="BeforeBuild" DependsOnTargets="ReleaseBridgeResources">
     <Message Text="BridgeHost is $(BridgeHost)" />