This commit replace the existing usage of NetworkSpecifier#redact() to
the new NetworkSpecifier#redact(RedactionType) API.
This doesn't change the existing behavior because redact() is still
called for NetworkSpecifiers which doesn't oevrride
getApplicableRedactions() method.
Bug: 374037595
Flag: NONE can't use simply flag guarding because the code needs to
maintain compatibility across different mainline and platform versions
Change-Id: I30d7257b8e5880218b315ade60d2d77fed1f89fb
997c5651d0