What I normally do is use finder to search for system files and delete them also along with the .app . You have to add system files to the search manually thoug

What I normally do is use finder to search for system files and delete them also along with the .app . You have to add system files to the search manually though. When you search there is a + next to save in finder, click that, have name and matcha, + another option, choose other and scroll down to System Files, then set to are included.