Remove OAuth from composer

Author: pdobrescu

.github/workflows/phpunit.yml

@@ -55,10 +55,6 @@ jobs:
           chmod +x wp-cli.phar
           sudo mv wp-cli.phar /usr/local/bin/wp
 
-      #Configure GH token to access the plugin-modules repo, which is private
-      - name: Configure GitHub OAuth for Composer
-        run: composer config --global github-oauth.github.com ${{ secrets.SP_PLUGIN_MODULES_TOKEN }}
-
       - name: Install Composer dependencies
         run: |
           composer clear-cache