Explicitly say that coinbase transactions MUST NOT have transparent inputs (this is a consensus rule inherited from Bitcoin which has been present since launch).
Explicitly say that coinbase transactions MUST NOT have transparent inputs
(this is a consensus rule inherited from Bitcoin which has been present since launch).

Signed-off-by: Daira Hopwood <cd7d43d5556a38ce626d53826fddc46adc597539@jacaranda.org>

zcash/zips,zcash/zips,zcash/zips,zcash/zips