Remove left-over couts

[richelbilderbeek]

Is your feature request related to a problem? Please describe.

I see two useless couts:

    std::cout << b << " "; // use b
    assert(b);

    std::cout << b << "\n"; // use b
    assert(b);

I assume they are there to suppress some warning.

However, when tests run, there should be no output.

Describe the solution you'd like

Remove these couts

Suppress the warning itself.

You could also fake b being used in any other way, as long as it does not produce output.

Describe alternatives you've considered

None.

Additional context

None