Opimize del_history task

[joente]

Description

This pull request improves the del_history task which previously required to loop over commits for each ID to be removed. After this pull request, the same is done in a single loop.

Type of change

• Performance improvement.

How Has This Been Tested?

• Test commits

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• New and existing unit tests pass locally with my changes