ci: Remove brew bump formula from CI

ci/bump-brew-formula.yml

@@ -1,16 +0,0 @@
-jobs:
-  - job: ${{ parameters.name }}
-    displayName: ${{ parameters.displayName }}
-    pool:
-      vmImage: macOS-10.13
-    steps:
-      - script: |
-          GIT_TAG="$(Build.SourceBranch)"
-          git config --global user.name "matchai"
-          git config --global user.email "hello@matchai.me"
-          git config --global credential.helper store
-          export HOMEBREW_GITHUB_API_TOKEN=$HOMEBREW_GITHUB_API_TOKEN
-          echo "https://matchai:$HOMEBREW_GITHUB_API_TOKEN@github.com" >> ~/.git-credentials
-          brew update
-          brew bump-formula-pr --url=https://github.com/starship/starship/archive/$GIT_TAG.tar.gz --message="Automated release pull request using continuous integration." --no-browse -v starship
-        displayName: Bump the Homebrew formula