Enables stdout for unit tests

By default pytests does not capture stdout, but it can do with -s. It is nice to have the option to verbose the tests if needed

test/pisa/unit/test_tools.py

@@ -1,10 +1,7 @@
-from pisa import c_logger
 from pisa.tools import can_connect_to_bitcoind, in_correct_network, bitcoin_cli
 
 from common.tools import check_sha256_hex_format
 
-c_logger.disabled = True
-
 
 def test_in_correct_network(run_bitcoind):
     # The simulator runs as if it was regtest, so every other network should fail