SuperSu not at all functional, can't uninstall I installed SuperSU from Google Play, and then from a zip file using ClockWorkMod and now it crashes every time I go to log or settings. I tried factory reset, not quite sure how I thought it would help, and it's still broken. I'd like to uninstall it if possible. Fixes are also welcome, tough.

Edit: I'm using LG Nexus 5 with Android 5.1.1, Cyanogenmod 12.1 and ElementalX N5 2.11 kernel.
Steps: 


First, you need to install the SuperSu Zip file from recovery; then,
Install the latest version of SuperSu app from Play Store. 


Also, based on my experiences on Cyanogenmod ROMs, these ROMs are rooted before installing. So, you don't need to install any SuperSu file from recovery.