remove effect of SCRIPT_ENABLE_SCHNORR flag
Originally, the SCRIPT_ENABLE_SCHNORR flag was added first without any
effect, then later diffs put in the functionality. This Diff removes the
effect of the SCRIPT_ENABLE_SCHNORR flag, but keeps the flag around.
Some tests have to be removed accordingly since they were specifically
testing flag-off behaviour that is no longer true.
Depends on D3253
- IBD with -checkpoints=0 and -assumevalid=0 on testnet
- IBD with -checkpoints=0 and -assumevalid=0 on mainnet
Reviewers: deadalnix, Mengerian, #bitcoin_abc
Reviewed By: deadalnix, Mengerian, #bitcoin_abc
Maniphest Tasks: T653
Differential Revision: https://reviews.bitcoinabc.org/D3331