Stop enforcing ancestor size/count limits

The cluster limits should be sufficient.

Co-Authored-By: Gregory Sanders <gsanders87@gmail.com>

test/functional/wallet_balance.py

@@ -55,9 +55,9 @@ class WalletTest(BitcoinTestFramework):
         # whitelist peers to speed up tx relay / mempool sync
         self.noban_tx_relay = True
         self.extra_args = [
-            # Limit mempool descendants as a hack to have wallet txs rejected from the mempool.
+            # Limit mempool clusters as a hack to have wallet txs rejected from the mempool.
             # Set walletrejectlongchains=0 so the wallet still creates the transactions.
-            ['-limitdescendantcount=3', '-walletrejectlongchains=0'],
+            ['-limitclustercount=3', '-walletrejectlongchains=0'],
             [],
         ]