test: remove unnecessary -datacarriersize args from tests

test/functional/test_framework/mempool_util.py

@@ -41,7 +41,7 @@ def fill_mempool(test_framework, node, *, tx_sync_fun=None):
     """Fill mempool until eviction.
 
     Allows for simpler testing of scenarios with floating mempoolminfee > minrelay
-    Requires -datacarriersize=100000 and -maxmempool=5 and assumes -minrelaytxfee
+    Requires -maxmempool=5 and assumes -minrelaytxfee
     is 1 sat/vbyte.
     To avoid unintentional tx dependencies, the mempool filling txs are created with a
     tagged ephemeral miniwallet instance.