[AB-xxx] removing discord webhook due to deprecated github action

.github/workflows/build.yml

@@ -37,15 +37,4 @@ jobs:
     - name: Build ui application
       working-directory: ./ui/experience-tracking
       run: npm run build
-    - uses: actions/setup-ruby@v1
-    - name: Send Webhook Notification
-      if: always()
-      env:
-        JOB_STATUS: ${{ job.status }}
-        WEBHOOK_URL: ${{ secrets.WEBHOOK_URL }}
-        HOOK_OS_NAME: ${{ runner.os }}
-        WORKFLOW_NAME: ${{ github.workflow }}
-      run: |
-        git clone https://github.com/DiscordHooks/github-actions-discord-webhook.git webhook
-        bash webhook/send.sh $JOB_STATUS $WEBHOOK_URL
-      shell: bash
+