Remove popup indicator for dialog style preferences.

Bug: 3341160

This is for some custom settings that needed dialog style indicators.

Change-Id: Ied9d88c890e764bc0ae50e0299daff50a6b432aa
diff --git a/res/xml/language_settings.xml b/res/xml/language_settings.xml
index 9230496..b7934e6 100644
--- a/res/xml/language_settings.xml
+++ b/res/xml/language_settings.xml
@@ -58,8 +58,7 @@
     <PreferenceCategory android:key="keyboard_settings_category"
             android:title="@string/keyboard_settings_category">
         <PreferenceScreen android:key="current_input_method"
-                android:title="@string/current_input_method"
-                android:widgetLayout="@*android:layout/preference_dialog" />
+                android:title="@string/current_input_method" />
 
         <ListPreference android:key="input_method_selector"
                 android:title="@string/input_method_selector"