code: function _removeFiles(entry) {
    return Utils.reduce(entry, (memo, value, key) => {
      if (value[0].match(/\.pack\.s[ac]ss/)) {
        memo.push(`${key}.js`);
      }
      return memo;
    }, []);
  }
docs: Scans entries for Sass files, and excludes the associated .js garbage files
  
  @param {Object} entry
  @return {array} list of files to remove from the final output