Remove devices in Text Message Forwarding settings pane?

When in the Text Message Forwarding area of the system settings in iOS 8.1, I have 3 "devices" in the list that shouldn't be there... a couple of those are actually the same device, but at some point was given a different machine network name, etc. I've looked everywhere, but can't find a place to remove any of those devices... I've looked all throughout the Apple ID web site, etc.

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Changing your Apple ID password removes all of the repeated device entries in text message forwarding.

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