Found with bin/find-unneeded-includes
Only removal proposals are dealt with here.
The fallout of this resulted in a lot of headers added back to
chart2/inc/ChartView.hxx

Change-Id: Ie0e3b156b8b9fa0ea7745ee8cf9d7dd0e942bf91
Reviewed-on: https://gerrit.libreoffice.org/55826
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>