qa: Move common args to bitcoin.conf

test/functional/test_framework/util.py

@@ -291,6 +291,9 @@ def initialize_datadir(dirname, n):
         f.write("regtest=1\n")
         f.write("port=" + str(p2p_port(n)) + "\n")
         f.write("rpcport=" + str(rpc_port(n)) + "\n")
+        f.write("server=1\n")
+        f.write("keypool=1\n")
+        f.write("discover=0\n")
         f.write("listenonion=0\n")
         f.write("bind=127.0.0.1\n")
     return datadir