[QA] Avoid running multiwallet.py twice

Author: jonasschnelli

test/functional/test_runner.py

@@ -63,7 +63,6 @@
     'segwit.py',
     # vv Tests less than 2m vv
     'wallet.py',
-    'multiwallet.py',
     'wallet-accounts.py',
     'p2p-segwit.py',
     'wallet-dump.py',