traceback on os.remove failure

I'm not sure what caused it, but I saw this in /var/log/upstart/click-apparmor.log:
Traceback (most recent call last):
  File "/usr/bin/aa-clickhook", line 155, in <module>
    sys.exit(main())
  File "/usr/bin/aa-clickhook", line 150, in main
    os.remove(os.path.join(apparmor_profiles, m))
FileNotFoundError: [Errno 2] No such file or directory: '/var/lib/apparmor/profiles/click_com.ubuntu.developer.webapps.webapp-facebook_webapp-facebook_1.0.3'

aa-clickhook should handle this more gracefully.