Revert "About Carbon in Settings"

This reverts commit 9cb20546f2e809857456683ae0243099f7cb5695.

Conflicts:
	res/values/cr_strings.xml
Revert "(CarbonDelta 1/3) Hook CarbonDelta from Update Android option in Settings"

This reverts commit 35ae7a9fea95df529f4648334f511eb787bb057c.