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

Also a typo fix :)

Change-Id: I7c96e8459f6fb75b07f6447715e8165800ecba53
Reviewed-on: https://gerrit.libreoffice.org/62259
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>