Author: Zig Tan
MDL-61977 tool_profiling: Implemented null privacy provider
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f9d9e2986172328cc5bf04f9d346c45771c6cfe7
http://github.com/moodle/moodle/commit/f9d9e2986172328cc5bf04f9d346c45771c6cfe7
+ 3.3 en [privacy:metadata,tool_profiling]