Remove implementation of disabled opcodes
Remove implementation of disabled opcodes

So we stop getting pull requests fixing problems with disabled Script
opcodes.
A hard fork would be required to re-enable these, and if we ever did
that we'd require extensive review and testing.

vergecurrency/VERGE,vergecurrency/VERGE,vergecurrency/VERGE,vergecurrency/VERGE,vergecurrency/VERGE,vergecurrency/VERGE