Bug 143 is fixed, so clean up some of exvar.
Bug 143 is fixed, so clean up some of exvar.

R=r
APPROVED=r
DELTA=8  (3 added, 1 deleted, 4 changed)
OCL=27699
CL=27701

tav/go,tav/go,tav/go,tav/go,tav/go,tav/go,tav/go