ci: Remove CHANGELOG.md generation

Because of permissions issues with having bots push to master, it
looks like it won't be possible to do from an Action right now.

.github/workflows/workflow.yml

@@ -187,32 +187,6 @@ jobs:
     env:
       HOMEBREW_GITHUB_API_TOKEN: ${{ secrets.HOMEBREW_GITHUB_API_TOKEN }}
 
-  generate_changelog:
-    if: github.ref == 'refs/heads/master'
-    name: Update Changelog
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@master
-      - name: Delete old changelog
-        run: rm -rf CHANGELOG.md
-      - name: Generate changelog
-        run: |
-          # Temporary fix for https://github.com/actions/setup-go/issues/14
-          export PATH=$PATH:$(go env GOPATH)/bin
-          go get -u github.com/git-chglog/git-chglog/cmd/git-chglog
-          git-chglog -c .github/chglog/changelog.yml > CHANGELOG.md
-      - name: Commit new changelog
-        run: |
-          git config --global user.email "bot@starship.rs"
-          git config --global user.name "Starship Bot"
-
-          git checkout master
-          git add CHANGELOG.md
-          git commit -m "Update changelog"
-          git push "https://$GITHUB_ACTOR:$GITHUB_TOKEN@github.com/$GITHUB_REPOSITORY.git" master
-    env:
-      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
   # Create GitHub release with Rust build targets and release notes
   github_release:
     if: startsWith(github.ref, 'refs/tags/v')