Decouple CentralSurfaces and NPVC

Continuing effort started in ag/20327965, this time focusing on
references to CentralSurfaces in NPVC. Removes 5 more methods
from the CentralSurfaces API.

Bug: 249277686
Test: manual and atest
Change-Id: Ib8180339413c7209e5380eebf38f430dbd9f34a1