std::bind has some special behavior that can kick in at surprising times.

1. It has a special case interaction with std::reference_wrapper.
2. It has a special case interaction when bind expressions are bound to each other.
3. It can silently ignore trailing arguments.

An analysis of the problems here: https://abseil.io/tips/108

Unless you need behaviors 1 or 2, you're better off with a polymorphic lambda.

Replace std::bind in all other cases (only 2 files), so we don't get used to seeing it in the codebase. A previous sweep (SERVER-32070) eliminated previous calls.