Found with bin/find-unneeded-includes
Only removal proposals are dealt with here.
Quite a bit of fallout management was necessary.
Several files were not checked earlier because of IWYU problems.
Also a few mistaken entries from the yaml file are corrected.

Change-Id: I943dfb955e096896961ac487d26ce57a6cb76cc2
Reviewed-on: https://gerrit.libreoffice.org/55303Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>