Fan Zhang e84407f5c3 Recursively remove preference from screen.
The preference framework does not remove pref recursively. So when a
preference is nested in preference hierarchy, it's not safe to simply
call screen.removePreference(). We need to first find its parent and
remove pref from its parent.

Change-Id: Ic7fefa498ed71a8877d862845ddcc2d6d6034a55
Fix: 38507066
Test: make RunSettingsRoboTests
2017-05-24 21:21:00 +00:00
2015-04-13 09:21:39 -07:00
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