iwyu is marked for autoremoval from testing

[Debian testing autoremoval watch]

iwyu 8.0-4 is marked for autoremoval from testing on 2021-02-23

It is affected by these RC bugs:
981061: iwyu: fails to migrate to testing for too long: FTBFS everywhere except amd64/i386
 https://bugs.debian.org/981061



This mail is generated by:
https://salsa.debian.org/release-team/release-tools/-/blob/master/mailer/mail_autoremovals.pl

Autoremoval data is generated by:
https://salsa.debian.org/qa/udd/-/blob/master/udd/testing_autoremovals_gatherer.pl