Remove vendors/ (#12377)

.github/workflows/validate-vendor-versions.yml

@@ -1,32 +0,0 @@
-name: Validate_Vendor_Versions
-
-on:
-  push:
-    branches:
-      - main
-      - patch-release
-    paths:
-      - "package.json"
-  pull_request:
-    paths:
-      - "package.json"
-
-jobs:
-  validate-vendor-versions:
-    name: Validate Vendor Versions
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2.4.0
-
-      - name: Setup Node.js
-        uses: actions/setup-node@v2.5.1
-        with:
-          version: "14"
-          cache: "yarn"
-
-      - name: Install Dependencies
-        run: yarn install --frozen-lockfile
-
-      - name: Validate Vendor Versions
-        run: yarn run vendors:validate