diff --git a/src/txmempool.h b/src/txmempool.h
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -863,19 +863,6 @@
     bool GetCoin(const COutPoint &outpoint, Coin &coin) const override;
 };
 
-// We want to sort transactions by coin age priority
-typedef std::pair<double, CTxMemPool::txiter> TxCoinAgePriority;
-
-struct TxCoinAgePriorityCompare {
-    bool operator()(const TxCoinAgePriority &a, const TxCoinAgePriority &b) {
-        if (a.first == b.first) {
-            // Reverse order to make sort less than
-            return CompareTxMemPoolEntryByScore()(*(b.second), *(a.second));
-        }
-        return a.first < b.first;
-    }
-};
-
 /**
  * DisconnectedBlockTransactions
  *