Depend on SettingsLib's version of lifecycle and FooterMixin.

The implementations have been imported into SettingsLib. Setting's copy
can now be removed, which this change also does.

Test: Manually check battery status, which uses FooterMixin, looks OK.
make RunSettingsLibRobotTests && make RunSettingsRoboTests
     && make RunSettingsGoogleRoboTests
Change-Id: I6539605fdad80d156ff5ff249e68df4a1c412067
diff --git a/src/com/android/settings/SettingsPreferenceFragment.java b/src/com/android/settings/SettingsPreferenceFragment.java
index 761e8cf..3fc7964 100644
--- a/src/com/android/settings/SettingsPreferenceFragment.java
+++ b/src/com/android/settings/SettingsPreferenceFragment.java
@@ -48,8 +48,8 @@
 import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.core.instrumentation.Instrumentable;
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
-import com.android.settings.widget.FooterPreferenceMixin;
 import com.android.settingslib.HelpUtils;
+import com.android.settingslib.widget.FooterPreferenceMixin;
 
 import java.util.UUID;