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

Change-Id: I804895a4dd2d98707f0d1bbbc9bb78782b07a397
Reviewed-on: https://gerrit.libreoffice.org/61505
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>