Revert "WX-1210 Added JIRA ID for Cromwhelm auto commit message (#7180)"

This reverts commit 4ca252c.

.github/workflows/chart_update_on_merge.yml

@@ -11,12 +11,6 @@ jobs:
     if: github.event.pull_request.merged == true
     runs-on: self-hosted # Faster machines; see https://github.com/broadinstitute/cromwell/settings/actions/runners
     steps:
-    - name: Fetch Jira ID from the commit message
-      id: fetch-jira-id
-      run: |
-        JIRA_ID=$(echo '${{ github.event.head_commit.message }}' | grep -Eo '\[?[A-Z][A-Z]+-[0-9]+\]?')
-        [[ -z "$JIRA_ID" ]] && { echo "No Jira ID found in $1" ; exit 1; }
-        echo "JIRA_ID=$JIRA_ID" >> $GITHUB_OUTPUT
     - name: Clone Cromwell
       uses: actions/checkout@v2
       with:
@@ -88,5 +82,5 @@ jobs:
         git diff
         git config --global user.name "broadbot"
         git config --global user.email "broadbot@broadinstitute.org"
-        git commit -am "${{ steps.fetch-jira-id.outputs.JIRA_ID }}: Auto update to Cromwell $CROMWELL_VERSION"
+        git commit -am "Auto update to Cromwell $CROMWELL_VERSION"
         git push https://broadbot:$BROADBOT_GITHUB_TOKEN@github.com/broadinstitute/cromwhelm.git main