Change to use new suggestion/condition UI.

Change to always use the new UI that combines the suggestion and conditions,
and remove all codes relating to the old UI.

Bug: 37645754
Bug: 62621808
Test: make RunSettingsRoboTests
Change-Id: I3421a9e5182f6606843392d6fae8b9f07c5f2e46

src/com/android/settings/dashboard/DashboardFeatureProvider.java

@@ -95,9 +95,4 @@ public interface DashboardFeatureProvider {
      */
     void openTileIntent(Activity activity, Tile tile);
 
-    /**
-     * Whether or not we should use new UI that combines the settings suggestions and conditions.
-     */
-    boolean combineSuggestionAndCondition();
-
 }