Revert "timekeeping: utilize the suspend-nonstop clocksource to count suspended time"

This reverts commit bca69e216a1a64b333566f88e9d0d3c980cc9d1e.
Revert "timekeeping: Add missing update call in timekeeping_resume()"

This reverts commit f7b82527a4d4a1a326f6fce9f01f352164d1bfa2.