new → closed
Well.. I was curious about this, commented all the function and ran the test suite.
100 tests of 1134 failed.
They belong to fx, dimensions, css, width/height and a few more single tests.
This shows that the function isn't used everywhere, but only by certain modules.
You probably don't use them so it doesn't fail (or maybe it does fail and you don't notice).
Anyway.. all the mentioned modules are included into the core, and need to be supported.
You can always make your own build of jQuery, removing w/e you prefer.