Make input language selection settings work

This change also tweaks the padding of candidate strip for phone.

Change-Id: Iefe4dfeb7015e11d5b2d1566121f719d60b1377e
diff --git a/java/res/xml/prefs.xml b/java/res/xml/prefs.xml
index 3b20298..9c780cb 100644
--- a/java/res/xml/prefs.xml
+++ b/java/res/xml/prefs.xml
@@ -70,15 +70,10 @@
             android:defaultValue="@string/voice_mode_main"
             />
 
-    <!-- TODO: Filter subtypes by IME in SubtypeEnabler -->
-    <!-- TODO: Maybe use this only for phone? -->
     <PreferenceScreen
             android:key="subtype_settings"
             android:title="@string/language_selection_title"
-            android:summary="@string/language_selection_summary">
-        <intent
-                android:action="android.settings.INPUT_METHOD_AND_SUBTYPE_ENABLER"/>
-    </PreferenceScreen>
+            android:summary="@string/language_selection_summary" />
 
     <PreferenceCategory
             android:title="@string/prediction_category"