consensus: remove incorrect comment
The ZcashDeserialize implementation for Block doesn't check that blocks
have a coinbase height.
@@ -138,9 +138,6 @@ where
_ => unreachable!("wrong response to Request::Depth"),
}
- // We repeat the height checks here, to ensure that generated blocks
- // are valid. (We check the block heights for parsed blocks when we
- // deserialize them.)
let height = block
.coinbase_height()
.ok_or(BlockError::MissingHeight(hash))?;
