Found with bin/find-unneeded-includes
Only removal proposals are dealt with here.

Change-Id: I404b1ff3c312e5168a6dfec0133092dda640e155
Reviewed-on: https://gerrit.libreoffice.org/61508
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>