app/src/main/webapp/roller-ui/authoring/editors/xinha-1.5.1/plugins/SuperClean/filters/paragraph.js

function(html) {
  html = html.replace(/<\s*p[^>]*>/gi, '');
  html = html.replace(/<\/\s*p\s*>/gi, '');
  html = html.trim();
  return html;
}