The subdivision surface modeling tools where removed from maya 2014. Autodesk suggests you using smooth mesh and the polygon crease tools.

I cannot say this disappointing to me as I always felt maya's subdivision surface tools were cobbled on as an after thought by marketing executives so they could claim in a brochure that Maya was a subd modeler just like <fill in competitor name here>.

I expect NURBS will be the next to go seeing as how they have not been touched for over ten years now!