WIP: Remove transparent transactions

zebra-chain/src/block.rs

@@ -14,7 +14,6 @@ use crate::{
     serialization::{TrustedPreallocate, MAX_PROTOCOL_MESSAGE_LEN},
     sprout,
     transaction::Transaction,
-    transparent,
     value_balance::{ValueBalance, ValueBalanceError},
 };
 
@@ -81,7 +80,6 @@ impl Block {
             .first()
             .and_then(|tx| tx.inputs().first())
             .and_then(|input| match input {
-                transparent::Input::Coinbase { ref height, .. } => Some(*height),
                 _ => None,
             })
     }