These functions are not used, and appear to have been superceded. Change-Id: I86fe51b088264f6b1b8d4d232bba97b371b98120
No longer used. Change-Id: Id28c9247cebba183c6fa786dff96824ae100132c
Mostly for cleanup purposes. Now we should be able to rework the encoder/decoder to use a common idct/add function. Change-Id: I1597cc59812f362ecec0a3493b6101a6cc6fa7ff