remove unused 'refundGas' from evm/state_transactions

nimbus/evm/state_transactions.nim

@@ -36,13 +36,6 @@ proc setupTxContext*(vmState: BaseVMState, origin: EthAddress, gasPrice: GasInt,
   vmState.gasCosts = vmState.fork.forkToSchedule
 
 
-proc refundGas*(c: Computation, tx: Transaction, sender: EthAddress) =
-  let maxRefund = (tx.gasLimit - c.gasMeter.gasRemaining) div 2
-  c.gasMeter.returnGas min(c.getGasRefund(), maxRefund)
-  c.vmState.mutateStateDB:
-    db.addBalance(sender, c.gasMeter.gasRemaining.u256 * tx.gasPrice.u256)
-
-
 # FIXME-awkwardFactoring: the factoring out of the pre and
 # post parts feels awkward to me, but for now I'd really like
 # not to have too much duplicated code between sync and async.

nimbus/sync/snap/worker/pivot/heal_accounts.nim

@@ -36,7 +36,7 @@
 ## healing algorithm again.
 ##
 import
-  std/[math, sequtils],
+  std/[math, sequtils, tables],
   chronicles,
   chronos,
   eth/[common, p2p, trie/nibbles, trie/trie_defs, rlp],

nimbus/sync/snap/worker/pivot/heal_storage_slots.nim

@@ -38,7 +38,7 @@
 ## healing algorithm again.
 ##
 import
-  std/[math, sequtils],
+  std/[math, sequtils, tables],
   chronicles,
   chronos,
   eth/[common, p2p, trie/nibbles],