Stop enforcing descendant size/count limits

Cluster size limits should be enough.

test/functional/mempool_truc.py

@@ -196,15 +196,15 @@ class MempoolTRUC(BitcoinTestFramework):
         node.invalidateblock(block["hash"])
         self.check_mempool([tx_v3_block["txid"], tx_v2_block["txid"], tx_v3_block2["txid"], tx_v2_from_v3["txid"], tx_v3_from_v2["txid"], tx_v3_child_large["txid"], tx_chain_1["txid"], tx_chain_2["txid"], tx_chain_3["txid"], tx_chain_4["txid"]])
 
-    @cleanup(extra_args=["-limitdescendantsize=10"])
+    @cleanup(extra_args=["-limitclustercount=1"])
     def test_nondefault_package_limits(self):
         """
-        Max standard tx size + TRUC rules imply the ancestor/descendant rules (at their default
+        Max standard tx size + TRUC rules imply the cluster rules (at their default
         values), but those checks must not be skipped. Ensure both sets of checks are done by
-        changing the ancestor/descendant limit configurations.
+        changing the cluster limit configurations.
         """
         node = self.nodes[0]
-        self.log.info("Test that a decreased limitdescendantsize also applies to TRUC child")
+        self.log.info("Test that a decreased cluster count limit also applies to TRUC child")
         parent_target_vsize = 9990
         child_target_vsize = 500
         tx_v3_parent_large1 = self.wallet.send_self_transfer(
@@ -218,12 +218,11 @@ class MempoolTRUC(BitcoinTestFramework):
             version=3
         )
 
-        # Parent and child are within v3 limits, but parent's 10kvB descendant limit is exceeded
+        # Parent and child are within v3 limits, but cluster count limit is exceeded.
         assert_greater_than_or_equal(TRUC_MAX_VSIZE, tx_v3_parent_large1["tx"].get_vsize())
         assert_greater_than_or_equal(TRUC_CHILD_MAX_VSIZE, tx_v3_child_large1["tx"].get_vsize())
-        assert_greater_than(tx_v3_parent_large1["tx"].get_vsize() + tx_v3_child_large1["tx"].get_vsize(), 10000)
 
-        assert_raises_rpc_error(-26, f"too-long-mempool-chain, exceeds descendant size limit for tx {tx_v3_parent_large1['txid']}", node.sendrawtransaction, tx_v3_child_large1["hex"])
+        assert_raises_rpc_error(-26, "too-large-cluster", node.sendrawtransaction, tx_v3_child_large1["hex"])
         self.check_mempool([tx_v3_parent_large1["txid"]])
         assert_equal(node.getmempoolentry(tx_v3_parent_large1["txid"])["descendantcount"], 1)
         self.generate(node, 1)