This is intended to prevent the user from creating new objects while the
transaction that removes them is being run, resulting in objects with
nil authors which can then not be edited.
See https://gitlab.com/gitlab-org/gitlab-ce/issues/7117
* Link to user profile instead of user admin page
* One button for remove user and report
* Remove user and report with page reloading
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>