CI: drop nightly (#15480)

.github/workflows/events-nightly.yml

@@ -1,58 +0,0 @@
-name: Nightly
-
-# https://jasonet.co/posts/scheduled-actions/
-# https://github.community/t/distinct-job-for-each-schedule/17811/2
-on:
-  schedule:
-    # At the end of every day
-    - cron: "0 0 * * *"
-
-# based on https://github.com/pypa/gh-action-pypi-publish
-jobs:
-  pypi-release:
-    if: ${{ github.repository == 'Lightning-AI/lightning' }}  # skip for forks
-    runs-on: ubuntu-20.04
-
-    steps:
-      # does nightly releases from feature branch
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
-        with:
-          python-version: 3.9
-
-      - name: Install dependencies
-        run: >-
-          python -m pip install --user --upgrade setuptools wheel
-
-      - name: Build packages
-        run: |
-          pip install -q -r .actions/requirements.txt
-          python .actions/assistant.py prepare_nightly_version
-          python setup.py sdist bdist_wheel
-          ls -lh dist/
-
-      - name: Delay releasing
-        uses: juliangruber/sleep-action@v1
-        with:
-          time: 5m
-
-      # We do this, since failures on test.pypi aren't that bad
-      - name: Publish to Test PyPI
-        uses: pypa/gh-action-pypi-publish@v1.5.1
-        with:
-          user: __token__
-          password: ${{ secrets.test_pypi_password }}
-          repository_url: https://test.pypi.org/legacy/
-          verbose: true
-
-      # report failure to Slack
-      - name: Slack notification
-        if: failure() && github.event_name == 'schedule'
-        uses: ravsamhq/notify-slack-action@v2
-        with:
-          status: ${{ job.status }}
-          token: ${{ secrets.GITHUB_TOKEN }}
-          notification_title: 'Publish nightly package to test.pypi.org'
-          message_format: '{emoji} *{workflow}* {status_message}, see <{run_url}|detail>, cc: <@UR9FXE6QG>'  #Borda
-        env:
-          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}

.github/workflows/release-pypi.yml

@@ -7,14 +7,7 @@ on:
   release:
     types: [published]
 
-# there are several consecutive actions:
-# 1) determine which packages have been change at the time this event is processed
-# 2) build related packages - app/pytorch or download latest from pypi
-# 3) create the meta package - lightning
-# 4) publish all new creations tada
-
 jobs:
-  # run job which determine changed versions
   init:
     runs-on: ubuntu-20.04
     steps:
@@ -26,7 +19,6 @@ jobs:
         name: dist-packages-${{ github.sha }}
         path: dist
 
-  # based on https://github.com/pypa/gh-action-pypi-publish
   build-packages:
     needs: init
     runs-on: ubuntu-20.04