Plasma/Device Notifier and non-removable drives [SOLVED]

[KLarsen]

For some reason, the Device Notifier in Plasma-5 (and KDE4 before the upgrade), thinks some of my non-removable drivers are in fact removable. My / and /home partitions are always shown in the Device Notifier, though naturally I get an error if I try to remove them as user (not that I would want to).
Strangely enough, the rest of my partitions are NOT shown. Also, it does show actual removable devices as it should.

Is there some way to hide them or make Plasma understand that they are not removable? Maybe there are some left-over configs from my KDE4 installation that Plasma now uses? As a side question, is it safe to remove the .kde and .kde4 folders after the Plasma-5 upgrade?

EDIT: Solution in 3rd post.

[djdunn]

I believe if you open dolphin on the left side at the bottom you will see your "removable drives" there. You can right click them there in dolphin and hide it.

You can remove the .kde directory and it might be smart to cleanup for a fresh plasma5 experience but know that your kde settings and such will go with it and a new .kde directory will be created on your next login of kde
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[KLarsen]

This only hides it from Dolphin, not the Device Notifier. I've narrowed my problem down to udisks erroneously reporting the partitions as ejectable. Does anyone know how to correct this?
I've tried making a udev rule with the following in order to hide the partitions: