Cleaned up extra files in Portal package

refs https://github.com/TryGhost/Toolbox/issues/426

- these files are no longer needed now the code is in the Ghost monorepo

ghost/portal/.github/workflows/test.yml

@@ -1,34 +0,0 @@
-name: Test
-on:
-  pull_request:
-  push:
-    branches:
-      - main
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node: [ '16' ]
-    env:
-      FORCE_COLOR: 1
-      CI: true
-    name: Node ${{ matrix.node }}
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
-        with:
-          node-version: ${{ matrix.node }}
-      - run: yarn install
-      - run: yarn build
-      - run: yarn test:ci
-
-      - uses: codecov/codecov-action@v3
-
-      - uses: daniellockyer/action-slack-build@master
-        if: failure() && github.event_name == 'push' && github.ref == 'refs/heads/main'
-        with:
-          status: ${{ job.status }}
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}

ghost/portal/LICENSE

@@ -1,21 +0,0 @@
-MIT License
-
-Copyright (c) 2013-2022 Ghost Foundation
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

ghost/portal/renovate.json

@@ -1,5 +0,0 @@
-{
-  "extends": [
-    "@tryghost:quietJS"
-  ]
-}