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

Change-Id: I76f15a8e7724384e8ba773621bdcac1351b32a0a
Reviewed-on: https://gerrit.libreoffice.org/62086
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>