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

Change-Id: Ie96f3c739d4b3654d60888e01f3a8a70c18d25cf
Reviewed-on: https://gerrit.libreoffice.org/58824
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>