Status header not clickable in DataUsageSummary

Status header (DataUsageSummaryPreference) is not clickable in the
DataUsageSummary.

So remove the legacy logics, to unblock unified default template.

Bug: 234104784
Test: m RunSettingsRoboTests
Change-Id: I3dddf4ec3f84d53fd07afbb62d171942a6acce5d
4 files changed