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

Change-Id: I07d78df2d5aacbdaff7344a09812db91de17d535
Reviewed-on: https://gerrit.libreoffice.org/71113
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>