To reproduce:

1. Log in as an admin and disable notes in advanced features
2. Go to any user's profile page (full or course profile)

Expected result: No notes link

Actual result: Notes link which gives an error when you follow it.

Notes are disabled, sorry.

Debug info:
Error code: notesdisabled
Stack trace:
line 463 of /lib/setuplib.php: moodle_exception thrown
line 32 of /notes/index.php: call to print_error()