## About The Pull Request
- Fixes#81537. For competing reactions where reaction B consumes the
results formed from reaction A `total_step_added` yields values higher
than the actual volume of products formed causing the reaction to end
early leading to less volume of product formed as explained in the
comment
- Removes `update_total()` from instant reactions as it already does
that for us making it a little faster
- merges `remove_all_direct()` with `remove_all()` to reduce code as
their functionalities are very similar
## Changelog
🆑
fix: multiple reactions occuring in the same holder like mixing drinks
will yield correct reagent result volumes
code: Removes `update_total()` from instant reactions improving
performance slightly
code: merges `remove_all_direct()` with `remove_all()` to reduce code
size
/🆑
a4292a0772