qa: Run more tests with wallet disabled

Summary:

Instead of skipping the whole test, only skip the wallet specific
section of a test if the wallet is not compiled in.

Backport of core PR14324.

Test Plan:

ninja check-functional

cmake -GNinja .. -DBUILD_BITCOIN_WALLET=OFF
ninja check-functional

1. Conflicts:
2. .travis.yml
3. test/functional/feature_config_args.py
4. test/functional/feature_notifications.py
5. test/functional/interface_bitcoin_cli.py
6. test/functional/interface_zmq.py

Reviewers: #bitcoin_abc, deadalnix

Reviewed By: #bitcoin_abc, deadalnix

Subscribers: deadalnix

Differential Revision: https://reviews.bitcoinabc.org/D6146