This method didn't work for my marshmallow. I was stuck at the 4 dots upon reboot. For those with the same problem , while your device is stuck at the 4 dots upon reboot, just call your device phone number. Once the call screen pops up, just cancel and your main screen will show up. Go back and reenable your google app. I don't know of a method that will work to remove the search bar but this method didn't work on mine.
Thanks! This was actually the only way I found that I could remove the google bar on Lollipop on a moto G 2014 LTE