I received the same message after updating to 14.04 as well, and I'm just as curious to know why the nvidia-331 update package must be removed for WINE to work. In my case, this is not even an option, as it would break my current setup with switchable graphics. Hopefully, more information regarding this will emerge sooner or later.
For now, however, there are some workarounds.
It seems that only WINE 1.6 asks for removing the "nvidia-libopencl1-331" package. WINE 1.7.16, on the other hand, installs just fine, without the need for removal.
Though, if needed, it is possible to get WINE 1.6 working using PlayOnLinux. This without having to remove the mentioned package as well.
For now, this should hopefully be enough to get the desired Windows applications to run.