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

Change-Id: I3e3bf3160fe3627cd105d8b69ff165c0577d8c9b
Reviewed-on: https://gerrit.libreoffice.org/62807
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>