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

Change-Id: I07bdc60ecc2d8ff9ad9c109f32b350eb09ac72e5
Reviewed-on: https://gerrit.libreoffice.org/60921
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>