[Secure-testing-team] Let's get rid of all pre-2003 TODOs

[Florian Weimer]

* Moritz Muehlenhoff:

> Can someone please apply some sed magic and rewrite all open TODOs
> as "NOT-FOR-US: Data pre-dating the Security Tracker"? Nearly 5000
> open TODOs keep attention away from the real issues that need
> evaluation.

In principle, the code supports a marker which suppresses these TODOs,
but the marker was removed during the CAN -> CVE transition, when the
two files were merged.