remove crashing rev-parse

Author: lobsterkatie

.github/workflows/build.yml

@@ -54,7 +54,6 @@ jobs:
         uses: mxschmitt/action-tmate@v3
       - name: Get commit message
         run: |
-          git rev-parse $GITHUB_HEAD_REF
           echo "COMMIT_MESSAGE=$(git log -n 1 --pretty=format:%s ${{ github.event.pull_request.head.sha }})" >> $GITHUB_ENV
       - name: "BRANCH: ${{ github.ref_name }}"
         run: echo ""