Revert "Added missing typeof check for tabulator."
Revert "Added missing typeof check for tabulator."

This reverts commit dfdf72486c932fa90a22c2ce6db634eb306aa63b.

redaktor/rdflib.js,redaktor/rdflib.js,timbl/rdflib.js,timbl/rdflib.js,timbl/rdflib.js