Remove NewlyIdleBalancer

NewlyIdleBalancer is not supported in kernel 6.1, so remvoe it.
Besides, the newly idle balance is mainly for ADPF now, the power
impact should be much less than before.

Bug: 350212757
Test: build pass
Change-Id: I1491954b96baa96821da09975fcdc52c8db85cab
2 files changed