Getting rid of the Google Search bar in home screen? (stock Android 5.1.1)

I've got a Nexus 5, freshly factory reset, with stock Android 5.1.1. When searching around how to disable the Google Search bar on the Home screen, all solutions I find recommend to go Settings→Apps→All, find the 'Google Search' app and disable that. But in my App list, there is no 'Google Search'! Yet the Google bar is most definitely on my home screen. How do I get rid of it?