Warning: rmdir(/-path-/spamicide): Directory not empty in drupal_rmdir() (line 2517 of -path-/file.inc).

When setting up a custom Spamicide directory on admin/config/people/spamicide, unlike the case on #2123757: Spamicide tried to remove default/files directory with rmdir()? → this time it is trying to remove the right directory, but failing because it is not empty;

Warning: rmdir(/home/username/public_html/sites/default/files/spamicide): Directory not empty in drupal_rmdir() (line 2517 of /home/username/public_html/includes/file.inc).

Furthermore, when customizing a selected form field name, the module fails to remove the default feed_me.css file, so now we have both new and the old default files in the custom Spamicide directory.

Manually removing both the default Spamicide directory and the default .css file takes care of the problem, but would be nice to address this issue on the module level.