Clean up unused Android permissions

Question

If I wanted to research how and where permissions [requested in the Mainfest.xml] were used in an Android app for the purposes of removing them is there an easy way of doing

Answer 1

The way I would do it for an app for which I didn't write the code would be to remove the permissions one by one and test the app end-to-end each time. When it fails, narrow it down. If not, that permission may not be used.