feat(actions): Remove copy workflow

.github/workflows/copy-readme.yaml

@@ -1,23 +0,0 @@
----
-name: Copy README to gh-pages
-
-on:
-  workflow_dispatch:
-  push:
-    branches: [master]
-    paths:
-      - README.md
-
-jobs:
-  copy-readme:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-      - name: Copy README to gh-pages
-        uses: planetoftheweb/copy-to-branches@v1.3
-        env:
-          key: master
-          files: README.md
-          branches: gh-pages