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

Change-Id: I5a4951e983078ab6b6cbf0e96b00a20584b85e20
Reviewed-on: https://gerrit.libreoffice.org/64398
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>