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

Cleaned directories are chartapiwrapper and dialogs
Also a few other hxx in other inc dirs that came up
during the process

Change-Id: Ibf9c33aeee91a92216e8ab512f87acc482e13ae5
Reviewed-on: https://gerrit.libreoffice.org/65566
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>