Revert "Make sure to produce full blocks."

This reverts commit b12d5920b2.

ethcore/src/ethereum/ethash.rs

@@ -289,18 +289,11 @@ impl Engine<EthereumMachine> for Arc<Ethash> {
 		self.machine.note_rewards(block, &[(author, result_block_reward)], &uncle_rewards)
 	}
 
-	#[cfg(not(feature = "miner-debug"))]
 	fn verify_local_seal(&self, header: &Header) -> Result<(), Error> {
 		self.verify_block_basic(header)
 			.and_then(|_| self.verify_block_unordered(header))
 	}
 
-	#[cfg(feature = "miner-debug")]
-	fn verify_local_seal(&self, _header: &Header) -> Result<(), Error> {
-		warn!("Skipping seal verification, running in miner testing mode.");
-		Ok(())
-	}
-
 	fn verify_block_basic(&self, header: &Header) -> Result<(), Error> {
 		// check the seal fields.
 		let seal = Seal::parse_seal(header.seal())?;