Remove root from custom ROM (MobileIron)

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http://forum.xda-developers.com – I was wondering if there was a way to remove root in a custom ROM. My company will be implementing MobilIron which detects root. From the little info I've been able to find online it seems that OTA Rootkeeper and Hide My Root will not accomplish this. The device will still report it is rooted. I was wondering if removing SU and superuser.apk will essentially unroot the phone and keep the custom ROM functional. Being that I have the VZW Galaxy Nexus I don't want to wait on Verizon for updates, but I don't care about my phone not being rooted. Another option I was thinking about was before f (HowTos)