Remove more analyzer redirecting VSIX related stuff (#51692)

Author: jjonescz

Directory.Packages.props

@@ -82,8 +82,6 @@
     <PackageVersion Include="Microsoft.TestPlatform.Build" Version="$(MicrosoftTestPlatformBuildPackageVersion)" />
     <PackageVersion Include="Microsoft.TestPlatform.CLI" Version="$(MicrosoftTestPlatformCLIPackageVersion)" />
     <PackageVersion Include="Microsoft.VisualStudio.Composition" Version="17.4.16" />
-    <PackageVersion Include="Microsoft.VisualStudio.Sdk" Version="17.2.32505.173" />
-    <PackageVersion Include="Microsoft.VSSDK.BuildTools" Version="17.11.435" />
     <PackageVersion Include="Microsoft.VisualStudio.Setup.Configuration.Interop" Version="$(MicrosoftVisualStudioSetupConfigurationInteropVersion)" />
     <PackageVersion Include="Microsoft.VisualStudio.SolutionPersistence" Version="$(MicrosoftVisualStudioSolutionPersistenceVersion)" />
     <PackageVersion Include="Microsoft.Web.Deployment" Version="$(WebDeploymentPackageVersion)" />

NuGet.config

@@ -29,8 +29,6 @@
     <add key="dotnet-tools-transport" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools-transport/nuget/v3/index.json" />
     <add key="dotnet-libraries" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-libraries/nuget/v3/index.json" />
     <add key="dotnet-libraries-transport" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-libraries-transport/nuget/v3/index.json" />
-    <add key="vssdk" value="https://pkgs.dev.azure.com/azure-public/vside/_packaging/vssdk/nuget/v3/index.json" />
-    <add key="vssdk-archived" value="https://pkgs.dev.azure.com/azure-public/vside/_packaging/vssdk-archived/nuget/v3/index.json" />
     <add key="vs-impl" value="https://pkgs.dev.azure.com/azure-public/vside/_packaging/vs-impl/nuget/v3/index.json" />
     <!-- Used for Rich Navigation indexing task -->
     <add key="richnav" value="https://pkgs.dev.azure.com/azure-public/vside/_packaging/vs-buildservices/nuget/v3/index.json" />

eng/Signing.props

@@ -81,10 +81,8 @@
     <FileSignInfo Include="Verify.dll" CertificateName="$(ExternalCertificateId)" />
     <FileSignInfo Include="Verify.DiffPlex.dll" CertificateName="$(ExternalCertificateId)" />
   </ItemGroup>
-  
-  <ItemGroup>
-    <FileSignInfo Include="StreamJsonRpc.dll" CertificateName="MicrosoftSHA2" />
 
+  <ItemGroup>
     <!-- Roslyn apphosts -->
     <FileSignInfo Condition="'$(TargetOS)' == 'osx'" Include="csc;vbc;VBCSCompiler" CertificateName="MacDeveloperHarden" />
   </ItemGroup>

eng/Versions.props

@@ -28,7 +28,6 @@
          compiler API targeted by analyzer assemblies. This is mostly an issue on source-build as
          in that build mode analyzer assemblies always target the live compiler API. -->
     <UsingToolMicrosoftNetCompilers Condition="'$(DotNetBuildSourceOnly)' == 'true'">true</UsingToolMicrosoftNetCompilers>
-    <UsingToolVSSDK>true</UsingToolVSSDK>
     <FlagNetStandard1XDependencies Condition="'$(DotNetBuildSourceOnly)' == 'true'">true</FlagNetStandard1XDependencies>
   </PropertyGroup>
   <PropertyGroup Label="Servicing version information">