updating debian - eight packages to be removed?

I tested what would happen if I did an upgrade (admittedly using synaptic, since I knew I could cancel it). I got this message (amongst others): ---------------- kdebase-kio-plugins-trinity will be removed kdebase-runtime-data-common-trinity will be removed kdebase-trinity will be removed kdesktop-trinity will be removed kmail-trinity will be removed konqueror-nsplugins-trinity will be removed konqueror-trinity will be removed ksmserver-trinity will be removed ----------------- Am I right in thinking that - for example - kmail would go? Any obvious reason why? Or am I missing something obvious? Here is the sources.list I would use (which has produced a working system, so far): deb-src http://ftp.nz.debian.org/debian/ jessie main non-free contrib deb http://ftp.nz.debian.org/debian/ jessie main non-free contrib deb http://ppa.quickbuild.pearsoncomputing.net/trinity/trinity-v3.5.13/debian wheezy main deb-src http://ppa.quickbuild.pearsoncomputing.net/trinity/trinity-v3.5.13/debian wheezy main deb http://ppa.quickbuild.pearsoncomputing.net/trinity/trinity-builddeps-v3.5.1… wheezy main deb-src http://ppa.quickbuild.pearsoncomputing.net/trinity/trinity-builddeps-v3.5.1… wheezy main deb http://security.debian.org/ jessie/updates main contrib non-free cheers ant -- Sent from my linux system running Debian 7, desktop trinity-KDE. This email is plain text, not HTML. Any attachments are either .jpeg or .pdf