I wonder if this is cost saving measure? By taking out the computers, there's no longer any free internet service. You have to either bring your own and pay the daily internet fee or go down to the business center and pay to use the computers there.
Also, I'm sure the computers used a lot of electricity. Enough to make a difference if you're talking about one in each room x EVERY room on property (if they were theoretically going to put one in every resort room on property). Plus, the maintenance costs. Plus, the costs to replace damaged units due to negligence/abuse by guests, etc.
I have stayed in hotels where computers were in the rooms previously, and lately, they have also been removed as well.
I have a feeling that *most* people who would use a computer just bring their own laptop. Those who did use the in room computer probably didn't like the lack of ability to do stuff like upload photos, do any real work (like checking email that required downloading or opening attachments/files, etc.).
I think it was a good idea in concept, but the computers were most likely removed due to guest feedback that they were not utilized and/or did not work the way WDW intended (i.e. the online "concierge" housekeeping/room service did not perform the way they anticipated).