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

Change-Id: Iae997959a0ec2c9edb1c795533692ec4e579449f
Reviewed-on: https://gerrit.libreoffice.org/57313
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>