test: remove plugin-source ext NUTs (#1446)

.github/workflows/test.yml

@@ -1,4 +1,4 @@
-# runs ut and nuts for SDR, plus the nuts from plugin-source
+# runs ut and nuts for SDR, plus the nuts from plugin-deploy-retrieve
 
 name: tests
 on:
@@ -28,39 +28,6 @@ jobs:
     with:
       os: ${{ matrix.os }}
 
-  xNuts-ps:
-    needs: linux-unit-tests
-    name: xNuts-ps
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu-latest, windows-latest]
-        command:
-          - 'yarn test:nuts:deb'
-          - 'yarn test:nuts:deploy:async'
-          - 'yarn test:nuts:deploy:destructive'
-          - 'yarn test:nuts:deploy:manifest'
-          - 'yarn test:nuts:deploy:metadata'
-          - 'yarn test:nuts:deploy:quick'
-          - 'yarn test:nuts:deploy:rest'
-          - 'yarn test:nuts:deploy:sourcepath'
-          - 'yarn test:nuts:deploy:testlevel'
-          - 'yarn test:nuts:mdapi'
-          - 'yarn test:nuts:retrieve'
-          - 'yarn test:nuts:specialTypes'
-          - 'yarn test:nuts:tracking'
-    uses: salesforcecli/github-workflows/.github/workflows/externalNut.yml@main
-    with:
-      packageName: '@salesforce/source-deploy-retrieve'
-      externalProjectGitUrl: 'https://github.com/salesforcecli/plugin-source'
-      command: ${{matrix.command}}
-      preBuildCommands: 'shx rm -rf node_modules/@salesforce/kit; shx rm -rf node_modules/@typescript-eslint; shx rm -rf node_modules/eslint-plugin-header; shx rm -rf node_modules/eslint-plugin-import; shx rm -rf node_modules/eslint-plugin-jsdoc; shx rm -rf node_modules/eslint-plugin-prettier'
-      postbuildCommands: 'cp src/registry/metadataRegistry.json lib/src/registry'
-      preExternalBuildCommands: 'shx rm -rf node_modules/@salesforce/source-tracking/node_modules/@salesforce/source-deploy-retrieve'
-      os: ${{matrix.os}}
-      useCache: false
-    secrets: inherit
-
   xNuts-pdr:
     needs: linux-unit-tests
     strategy: