Skip loading contextual cards if legacy cards are used

This stops a jarring animation that occurs when returning to the
settings top level when legacy contextual cards are enabled and
shown at the top of the top level list,

Bug: 142936956
Test: Manual
Change-Id: I43605adf6f1bf63cc40157ac97c8e3295dd3cd99
(cherry picked from commit aff4e61f)