suzerain: remove UPPER_{A,B,C} nonsense

Removes the additional handling/scaling of the buffer
based on A, B, and C.  Will accomodate these after the
fact.

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44037 0bd85f0b-c151-43b9-a1e9-27231104551f