Revert "Settings search - Navigate user to exact page"

This reverts commit 08f2a58459.

Reason for revert: design changed, we decide to take the user to
the entry after clicking on a search result.
It's opposite with what we did, so we revert related CL first.

Test: robotest

Change-Id: Iadb9a94a7ef7838be34a54499e2d934d6396c336

src/com/android/settings/applications/assist/ManageAssist.java

@@ -37,6 +37,7 @@ import java.util.List;
 public class ManageAssist extends DashboardFragment {
 
     private static final String TAG = "ManageAssist";
+    private static final String KEY_ASSIST = "gesture_assist_application";
 
     @Override
     protected String getLogTag() {
@@ -84,5 +85,12 @@ public class ManageAssist extends DashboardFragment {
                         Context context) {
                     return buildPreferenceControllers(context, null /* lifecycle */);
                 }
+
+                @Override
+                public List<String> getNonIndexableKeys(Context context) {
+                    List<String> keys = super.getNonIndexableKeys(context);
+                    keys.add(KEY_ASSIST);
+                    return keys;
+                }
             };
 }