[nicolas.mahy]

How to remove i.e. ‘Viewing x posts – x through x (of x total)’?

[Robin W]

Quickest way is to hide it using css

so in your style.css add

.bbp-pagination-count {
   display: none;
}

https://codex.bbpress.org/functions-files-and-child-themes-explained/

[Pascal Casier]

If that is the only thing you want to remove, then the above CSS is the best. If you want more options, you can always have a look at my bbP-Toolkit on https://wordpress.org/plugins/bbp-toolkit/
Pascal.