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

Change-Id: Ic5d0dd8c712e74825ed0d0de6bf366568ca48f25
Reviewed-on: https://gerrit.libreoffice.org/62460
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>