openssl speed: remove binary curve remnants

openssl speed: remove binary curve remnants

This wasn't properly hidden under OPENSSL_NO_EC2M, and all it does now
is producing ugly errors and useless "statistics". While looking at this,
I found that much of speed "has been pilfered from [Eric A. Young's]
libdes speed.c program". Apparently this was an precursor and ingredient
of SSLeay. Unfortunately, it seems that this piece of the history is lost.

ok miod

PS: If anyone is bored, a rewrite from scratch of the speed 'app' would
be a welcome contribution and may be an instructive rainy day project.
The current code was written in about the most stupid way possible so as
to maximize fragility and unmaintainability.