XDA member oscillik found a quick trick to get around it and make it disappear. Simply head into Settings > Apps> All> Google Search and hit Disable. There is a consequence for this action though. If you disable it you won’t be able to use the Google search app either. Which might leave those of you that use it often in a pickle. I have also read that after you have disabled it, tat it then goes missing from the apps sections and you can’t turn it back on. So the choice is really yours.
I am sure at some point in time there will be a mod that keeps the app working but allows you add a widget back to use if you desire. It won’t bother me either way since that is the first widget I always took off my screen when I flashed a new ROM.
Source: XDA