Remove superfluous code.

I suspect this was to work around that a very early version
of the previous renderer some times left vertex pointers
active, but this has not been the case for a very long time,
so this code is just wasting time and memory.

Change-Id: I4b79ff67d17bf47af515e8db203960c9bceae247
Reviewed-by: Alan Alpert <aalpert@blackberry.com>