Remove internal feeds from nuget.config

Author: dseefeld

NuGet.config

@@ -2,17 +2,9 @@
 <configuration>
   <packageSources>
     <clear />
-    <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
-    <add key="darc-int-dotnet-aspnetcore-b7a2ec8c" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-aspnetcore-b7a2ec8c/nuget/v3/index.json" />
     <!--  Begin: Package sources from dotnet-roslyn-analyzers -->
     <add key="darc-pub-dotnet-roslyn-analyzers-ce71b27" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-roslyn-analyzers-ce71b27b/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-roslyn-analyzers -->
-    <!--  Begin: Package sources from dotnet-runtime -->
-    <add key="darc-int-dotnet-runtime-2f740ad-5" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-runtime-2f740adc-5/nuget/v3/index.json" />
-    <add key="darc-int-dotnet-runtime-2f740ad-4" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-runtime-2f740adc-4/nuget/v3/index.json" />
-    <add key="darc-int-dotnet-runtime-2f740ad-3" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-runtime-2f740adc-3/nuget/v3/index.json" />
-    <add key="darc-int-dotnet-runtime-2f740ad" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-runtime-2f740adc/nuget/v3/index.json" />
-    <!--  End: Package sources from dotnet-runtime -->
     <!--  Begin: Package sources from dotnet-templating -->
     <add key="darc-pub-dotnet-templating-8470ff3-4" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-templating-8470ff31-4/nuget/v3/index.json" />
     <add key="darc-pub-dotnet-templating-8470ff3-3" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-templating-8470ff31-3/nuget/v3/index.json" />

smoke-testNuGet.Config

@@ -2,17 +2,9 @@
 <configuration>
   <packageSources>
     <clear />
-    <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
-    <add key="darc-int-dotnet-aspnetcore-b7a2ec8c" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-aspnetcore-b7a2ec8c/nuget/v3/index.json" />
     <!--  Begin: Package sources from dotnet-roslyn-analyzers -->
     <add key="darc-pub-dotnet-roslyn-analyzers-ce71b27" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-roslyn-analyzers-ce71b27b/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-roslyn-analyzers -->
-    <!--  Begin: Package sources from dotnet-runtime -->
-    <add key="darc-int-dotnet-runtime-2f740ad-5" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-runtime-2f740adc-5/nuget/v3/index.json" />
-    <add key="darc-int-dotnet-runtime-2f740ad-4" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-runtime-2f740adc-4/nuget/v3/index.json" />
-    <add key="darc-int-dotnet-runtime-2f740ad-3" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-runtime-2f740adc-3/nuget/v3/index.json" />
-    <add key="darc-int-dotnet-runtime-2f740ad" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-runtime-2f740adc/nuget/v3/index.json" />
-    <!--  End: Package sources from dotnet-runtime -->
     <!--  Begin: Package sources from dotnet-templating -->
     <add key="darc-pub-dotnet-templating-8470ff3-4" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-templating-8470ff31-4/nuget/v3/index.json" />
     <add key="darc-pub-dotnet-templating-8470ff3-3" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-templating-8470ff31-3/nuget/v3/index.json" />