Merge pull request rsksmart#497 from rsksmart/unused-var

Remove unused env vars

Author: marcos-iov

.github/workflows/rit.yml

@@ -134,8 +134,6 @@ jobs:
       - name: Send Slack Notification on Success
         if: success() && github.event.pull_request.head.repo.owner.login == 'rsksmart'
         uses: slackapi/slack-github-action@91efab103c0de0a537f72a35f6b8cda0ee76bf0a # v2.1.1
-        env:
-          GITHUB_EVENT_PULL_REQUEST_HTML_URL: ${{ github.event.pull_request.html_url }}
         with:
           token: ${{ secrets.GHA_SLACK_NOTIFICATION_TOKEN }}
           method: chat.postMessage
@@ -164,8 +162,6 @@ jobs:
       - name: Send Slack Notification on Failure
         if: failure() && github.event.pull_request.head.repo.owner.login == 'rsksmart'
         uses: slackapi/slack-github-action@91efab103c0de0a537f72a35f6b8cda0ee76bf0a # v2.1.1
-        env:
-          GITHUB_EVENT_PULL_REQUEST_HTML_URL: ${{ github.event.pull_request.html_url }}
         with:
           token: ${{ secrets.GHA_SLACK_NOTIFICATION_TOKEN }}
           method: chat.postMessage