Merge bitcoin-core/gui#705: doc: Fix comment about how wallet txs are sorted

c497a198db Fix comment about how wallet txs are sorted (John Moffett)

Pull request description:

  The wallet transactions in the node are not sorted by txid (or any hash) since https://github.com/bitcoin/bitcoin/pull/24699.

  This is how they're stored in memory now:

  https://github.com/bitcoin-core/gui/blob/835212cd1d8f8fc7f19775f5ff8cc21c099122b2/src/wallet/wallet.h#L397-L399

ACKs for top commit:
  achow101:
    ACK c497a198db
  jarolrod:
    ACK c497a198db

Tree-SHA512: e72559991688452ef254474d4235dc75fac655bce04909c3a0eece907360f4c6f57707db9b4373a4bd2271b23c57e863684c33e0728adf48e477c5499cdfdad7

src/qt/transactiontablemodel.cpp

@@ -93,10 +93,7 @@ public:
 
     TransactionTableModel *parent;
 
-    /* Local cache of wallet.
-     * As it is in the same order as the CWallet, by definition
-     * this is sorted by sha256.
-     */
+    //! Local cache of wallet sorted by transaction hash
     QList<TransactionRecord> cachedWallet;
 
     /** True when model finishes loading all wallet transactions on start */