Before deleting a list or library in SharePoint, please consider the following:

1. Have all the files been backed up?
2. Are there any workflows, items, or properties to be deleted which might save the list or library?
3. What would be the best solution to the problem in this case, deleting the list or library or another option?
4. Will I still have access to the data I need after deleting the list or library?
5. Are there any documents being indexed in the list or libraries that will no longer be indexed after their deletion?