Update first workflow to remove secret variable and environment variable

Author: Raffaele Marcello

.github/workflows/first-workflow.yml

@@ -18,8 +18,6 @@ jobs:
     steps:
     - name: Ship it
       uses: mscoutermarsh/cowsays-action@master
-      env:
-          MY_VAR: ${{ secrets.SECRET }}
       with:
-        text: 'Ready for prod–ship it! myvar=$MY_VAR'
+        text: 'Ready for prod–ship it!'
         color: 'magenta'