Revert "grouper: track faux's kernel (1/2)"

GODDAMNIT BART. ASLKJDHGLAKDJHLAKJ:LASKJD:LKAJD:LKAJD:LKADJLAJKHDLKJDHALKJDH:LKDAJ

This reverts commit ecd9f7940572dfd71497f420110bf2f5587e5d26.

Change-Id: I3d2849f4d3756d1e10a3ba3a4c4e46f2cc9356f7