Getting rid of cell standby (battery drainer) is pretty easy, and removing the icons is just as easy, although a bit more involved.
To disable cell standby, thus increasing battery life:
- Get a file explorer with root capabilities (i used file expert, free and no ads ^^)
- navigate to /system/app
- rename Phone.apk to Phone.apk.old (disables it, and lets you keep a backup just in case)
- rename TelephonyProvider.apk to TelephonyProvider.apk.old (same as before)
- navigate to /system
- open build.prop with an editor (file expert comes with an editor, long press build.prop select open as, select text)
- at the end of the file add the line "ro.carrier=wifi-only"
- reboot your tablet
- to ensure cell standby isnt eating your battery life, let your tablet charge fully, then check battery usage and see if its listed (to view battery usage add a shortcut to the homescreen, settings>battery usage (its hidden in the actual settings for some reason))
Would it work for Android 4/ICS ?