core/txpool/legacypool: fix tx removal

promoteExecutable already removes the txs from the queue.
We just need to remove them from the lookup.

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>

core/txpool/legacypool/legacypool.go

@@ -1413,8 +1413,18 @@ func (pool *LegacyPool) promoteExecutables(accounts []common.Address) []*types.T
 
 	// remove all removable transactions
 	for _, hash := range removeable {
-		pool.removeTx(hash, true, true)
+		pool.all.Remove(hash)
 	}
+
+	// release all accounts that have no more transactions in the pool
+	for _, addr := range accounts {
+		_, hasPending := pool.pending[addr]
+		_, hasQueued := pool.queue.get(addr)
+		if !hasPending && !hasQueued {
+			pool.reserver.Release(addr)
+		}
+	}
+
 	return promoted
 }
 

core/txpool/legacypool/queue.go

@@ -145,6 +145,12 @@ func (q *queue) add(hash common.Hash, tx *types.Transaction) (*common.Hash, erro
 	return &h, nil
 }
 
+// promoteExecutables iterates over all accounts with queued transactions, selecting
+// for promotion any that are now executable. It also drops any transactions that are
+// deemed too old (nonce too low) or too costly (insufficient funds or over gas limit).
+//
+// Returns two lists: all transactions that were removed from the queue and selected
+// for promotion; all other transactions that were removed from the queue and dropped.
 func (q *queue) promoteExecutables(accounts []common.Address, gasLimit uint64, currentState *state.StateDB, nonces *noncer) ([]*types.Transaction, []common.Hash) {
 	// Track the promoteable transactions to broadcast them at once
 	var promoteable []*types.Transaction