Drop reference to NPM_TOKEN from workflow file as well

Author: tidoust

.github/workflows/release-package.yml

@@ -34,4 +34,3 @@ jobs:
       run: node tools/release-package.js ${{ github.event.pull_request.number }}
       env:
         GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        NPM_TOKEN: ${{ secrets.NPM_TOKEN }}