Remove richnav.yml and feed (#61209)

The service no longer exists.

.azure/pipelines/richnav.yml

@@ -1,84 +0,0 @@
-#
-# See https://learn.microsoft.com/azure/devops/pipelines/yaml-schema for details on this file.
-#
-
-# Configure which branches trigger builds
-trigger:
-  branches:
-    include:
-    - main
-    - release/*
-
-# Do not run this pipeline for PR validation.
-pr: none
-
-variables:
-- name: _BuildArgs
-  value: '/p:SkipTestBuild=true'
-- name: WindowsNonX64LogArgs
-  value: -ExcludeCIBinaryLog
-- template: /eng/common/templates/variables/pool-providers.yml
-
-stages:
-- stage: build
-  displayName: Build
-  jobs:
-  # Build Windows (x64/x86/arm64)
-  - template: jobs/default-build.yml
-    parameters:
-      jobName: Windows_build
-      jobDisplayName: "Build: Windows x64/x86/arm64"
-      enableRichCodeNavigation: true
-      agentOs: Windows
-      steps:
-      - script: ./eng/build.cmd
-                -ci
-                -prepareMachine
-                -nativeToolsOnMachine
-                -arch x64
-                -buildNative
-                /p:EnableRichCodeNavigation=false
-                $(_BuildArgs)
-        displayName: Build x64 native assets
-
-      - script: ./eng/build.cmd
-                -ci
-                -prepareMachine
-                -nativeToolsOnMachine
-                -arch x64
-                -all
-                -noBuildNative
-                -noBuildRepoTasks
-                $(_BuildArgs)
-        displayName: Build x64
-
-      # Build the x86 shared framework
-      # This is going to actually build x86 native assets.
-      - script: ./eng/build.cmd
-                -ci
-                -prepareMachine
-                -nativeToolsOnMachine
-                -arch x86
-                -all
-                -noBuildJava
-                -noBuildNodeJS
-                -noBuildNative
-                -noBuildRepoTasks
-                $(_BuildArgs)
-                $(WindowsNonX64LogArgs)
-        displayName: Build x86
-
-      # Build the arm64 shared framework
-      - script: ./eng/build.cmd
-                -ci
-                -prepareMachine
-                -nativeToolsOnMachine
-                -arch arm64
-                -noBuildJava
-                -noBuildNodeJS
-                -noBuildNative
-                -noBuildRepoTasks
-                $(_BuildArgs)
-                $(WindowsNonX64LogArgs)
-        displayName: Build ARM64
-

NuGet.config

@@ -11,8 +11,6 @@
     <add key="dotnet8" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet8/nuget/v3/index.json" />
     <add key="dotnet8-transport" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet8-transport/nuget/v3/index.json" />
     <add key="dotnet-public" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json" />
-    <!-- Used for the Rich Navigation indexing task -->
-    <add key="richnav" value="https://pkgs.dev.azure.com/azure-public/vside/_packaging/vs-buildservices/nuget/v3/index.json" />
   </packageSources>
   <disabledPackageSources>
     <clear />