Stop enforcing ancestor size/count limits

The cluster limits should be sufficient.

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

test/functional/test_framework/messages.py

@@ -72,6 +72,7 @@ WITNESS_SCALE_FACTOR = 4
 
 DEFAULT_ANCESTOR_LIMIT = 25    # default max number of in-mempool ancestors
 DEFAULT_DESCENDANT_LIMIT = 25  # default max number of in-mempool descendants
+DEFAULT_CLUSTER_LIMIT = 64     # default max number of transactions in a cluster
 
 
 # Default setting for -datacarriersize.