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

Change-Id: Icc3cb8118b225c9b19b451b2a6463c844ef4162d
Reviewed-on: https://gerrit.libreoffice.org/62459
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>