Putting a Bible in a hotel room is neglectable at best and slightly discriminatory at worst but you know, it ain't like they're forcing you to read it, shoving down your throat while reciting passages and badly singing shoddy off-tune Christian songs or any of that shit. If you don't want to read it you don't have to read it. If I went to a hotel and found one, I'd choose to read it for some laughs but I'd sure as hell not be forced to read it.
Thing is, if there's a religious doctrine of any kind in a room there should be ones of other religions just as much. Because, as it is a choice to read one there should be a choice to read others. An "all or nothing" thing, if you will. Don't forget science books as to get people actually using their brains.