Remove old library templates (#14476)

## Description

This PR removes the "old" library templates as the `cpp-lib` template is the recommended template for all modules. 

### Type of Change
- Bug fix (non-breaking change which fixes an issue)
- Breaking change (fix or feature that would cause existing functionality to not work as expected)
- This change requires a documentation update

### Why
The old lib templates are focused on Old Arch compatible projects, and while they still work sometimes for New Arch, the `cpp-lib` template is **explicitly** a hybrid project to support New and Old arch projects.

Resolves #13932

### What
Deleted the shims that exposed the old lib template code to the `init-windows` command. Removed those configurations from the pipeline matrices.

## Screenshots
N/A

## Testing
Verified old templates are no longer available.

## Changelog
Should this change be included in the release notes: _yes_

Removed old lib templates in preference for the new cpp-lib template

Author: jonthysell

.ado/jobs/cli-init-windows.yml

@@ -73,16 +73,6 @@ parameters:
             configuration: Debug
             platform: x86
             additionalInitArguments: --namespace MyCompany.MyApplication.MyComponent
-          - Name: PaperLibX86DebugCpp
-            template: old/uwp-cpp-lib
-            configuration: Debug
-            platform: x86
-            additionalRunArguments: --no-autolink --no-deploy
-          - Name: PaperLibX86DebugCs
-            template: old/uwp-cpp-lib
-            configuration: Debug
-            platform: x86
-            additionalRunArguments: --no-autolink --no-deploy
           - Name: PaperX86DebugCppChakra
             template: old/uwp-cpp-app
             configuration: Debug
@@ -223,16 +213,6 @@ parameters:
             configuration: Debug
             platform: x86
             additionalInitArguments: --namespace MyCompany.MyApplication.MyComponent
-          - Name: PaperLibX86DebugCpp
-            template: old/uwp-cpp-lib
-            configuration: Debug
-            platform: x86
-            additionalRunArguments: --no-autolink --no-deploy
-          - Name: PaperLibX86DebugCs
-            template: old/uwp-cs-lib
-            configuration: Debug
-            platform: x86
-            additionalRunArguments: --no-autolink --no-deploy
           - Name: PaperX86DebugCppChakra
             template: old/uwp-cpp-app
             configuration: Debug

.ado/templates/react-native-init-windows.yml

@@ -77,30 +77,12 @@ steps:
       displayName: Init new app project with @react-native-community/cli init
       workingDirectory: $(Agent.BuildDirectory)
 
-  - ${{ if and(endsWith(parameters.template, '-lib'), not(startsWith(parameters.template, 'old'))) }}:
+  - ${{ if endsWith(parameters.template, '-lib') }}:
     - script: |
         npx --yes create-react-native-library@latest --slug testcli --description testcli --author-name "React-Native-Windows Bot" --author-email 53619745+rnbot@users.noreply.github.com --author-url http://example.com --repo-url http://example.com --languages kotlin-objc --type turbo-module --react-native-version $(reactNativeDevDependency) --example vanilla testcli
       displayName: Init new lib project with create-react-native-library
       workingDirectory: $(Agent.BuildDirectory)
 
-  - ${{ elseif and(endsWith(parameters.template, '-lib'), startsWith(parameters.template, 'old')) }}:
-    - script: |
-        npx --yes create-react-native-module@0.20.2 --package-name "testcli" testcli
-      displayName: Init new lib project with create-react-native-module
-      workingDirectory: $(Agent.BuildDirectory)
-
-    - script: |
-        rmdir /s /q android
-      displayName: Remove broken android folder # See issue https://github.com/microsoft/react-native-windows/issues/12209
-      workingDirectory: $(Agent.BuildDirectory)\testcli
-    
-    - script: |
-        call yarn install
-        call yarn upgrade react@$(reactDevDependency) --dev
-        call yarn upgrade react-native@$(reactNativeDevDependency) --dev
-      displayName: Update lib project react and react-native dev versions
-      workingDirectory: $(Agent.BuildDirectory)\testcli
-
   - script: |
       call yarn install
     displayName: pre-windows yarn install
@@ -156,22 +138,21 @@ steps:
   - ${{ if eq(parameters.useExperimentalWinUI3, true) }}:
     - template:  ../templates/enable-experimental-winui3.yml
       parameters:
-        ${{ if and(endsWith(parameters.template, '-lib'), not(startsWith(parameters.template, 'old'))) }}:
+        ${{ if endsWith(parameters.template, '-lib') }}:
           workingDir: $(Agent.BuildDirectory)\testcli\example\windows
         ${{ else }}:
           workingDir: $(Agent.BuildDirectory)\testcli\windows
 
-  - ${{ if or(endsWith(parameters.template, '-app'), and(endsWith(parameters.template, '-lib'), not(startsWith(parameters.template, 'old')))) }}:
-    - powershell: |
-        $path = (Get-ChildItem -Filter "Package.appxmanifest" -File -Recurse).FullName;
-        [xml] $manifest = Get-Content $path
-        $manifest.Package.Identity.Name = 'ReactNative.InitTest'
-        $manifest.Save("$path")
-      displayName: Set AppX package name to "ReactNative.InitTest"
-      ${{ if and(endsWith(parameters.template, '-lib'), not(startsWith(parameters.template, 'old'))) }}:
-        workingDirectory: $(Agent.BuildDirectory)\testcli\example\windows
-      ${{ else }}:
-        workingDirectory: $(Agent.BuildDirectory)\testcli\windows
+  - powershell: |
+      $path = (Get-ChildItem -Filter "Package.appxmanifest" -File -Recurse).FullName;
+      [xml] $manifest = Get-Content $path
+      $manifest.Package.Identity.Name = 'ReactNative.InitTest'
+      $manifest.Save("$path")
+    displayName: Set AppX package name to "ReactNative.InitTest"
+    ${{ if endsWith(parameters.template, '-lib') }}:
+      workingDirectory: $(Agent.BuildDirectory)\testcli\example\windows
+    ${{ else }}:
+      workingDirectory: $(Agent.BuildDirectory)\testcli\windows
 
   # End npm test server
   - template: verdaccio-stop.yml
@@ -184,7 +165,7 @@ steps:
 
   - template: react-native-debug-info.yml
     parameters:
-      ${{ if and(endsWith(parameters.template, '-lib'), not(startsWith(parameters.template, 'old'))) }}:
+      ${{ if endsWith(parameters.template, '-lib') }}:
         workingDirectory: $(Agent.BuildDirectory)\testcli\example
       ${{ else }}:
         workingDirectory: $(Agent.BuildDirectory)\testcli
@@ -205,7 +186,7 @@ steps:
       buildPlatform: ${{ parameters.platform }}
       deployOption: ${{ parameters.additionalRunArguments }}
       buildLogDirectory: $(Build.BinariesDirectory)\${{ parameters.platform }}\${{ parameters.configuration }}\BuildLogs
-      ${{ if and(endsWith(parameters.template, '-lib'), not(startsWith(parameters.template, 'old'))) }}:
+      ${{ if endsWith(parameters.template, '-lib') }}:
         workingDirectory: $(Agent.BuildDirectory)\testcli\example
       ${{ else }}:
         workingDirectory: $(Agent.BuildDirectory)\testcli
@@ -218,7 +199,7 @@ steps:
 
   # #13705 - Temporarily disable test:windows call until we get upstream fix
   # Only run the following on fabric apps
-  # - ${{ if and(endsWith(parameters.template, '-app'), not(startsWith(parameters.template, 'old'))) }}:
+  # - ${{ if and(endsWith(parameters.template, '-app')) }}:
   #   - script: call yarn test:windows
   #     displayName: Run jest tests with react-test-renderer
   #     workingDirectory: $(Agent.BuildDirectory)\testcli

change/react-native-windows-85c39f77-efab-40c3-85b8-bb7531984d0a.json

@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Remove old library templates",
+  "packageName": "react-native-windows",
+  "email": "jthysell@microsoft.com",
+  "dependentChangeType": "patch"
+}

vnext/templates/cpp-lib/template.config.js

@@ -242,9 +242,9 @@ async function postInstall(config = {}, options = {}) {
 }
 
 module.exports = {
-  name: 'React Native Windows Turbo Module (New Arch, C++)',
+  name: 'React Native Windows Library (C++)',
   description:
-    "[Experimental] A RNW turbo module targeting RN's new architecture.",
+    "A RNW native/turbo module supporting both RN's old and new architecture.",
   preInstall,
   getFileMappings,
   postInstall,