OmniGears: fix layout of rotation settings

Change-Id: I55b7390048976f2988864c387737660182021875
diff --git a/res/xml/display_rotation.xml b/res/xml/display_rotation.xml
index 38f0fa4..0b88884 100644
--- a/res/xml/display_rotation.xml
+++ b/res/xml/display_rotation.xml
@@ -37,28 +37,24 @@
     <SwitchPreference
         android:key="display_rotation_0"
         android:title="@string/display_rotation_0_title"
-        android:layout="?android:attr/preferenceLayoutChild"
         android:dependency="accelerometer"
         android:persistent="false" />
 
     <SwitchPreference
         android:key="display_rotation_90"
         android:title="@string/display_rotation_90_title"
-        android:layout="?android:attr/preferenceLayoutChild"
         android:dependency="accelerometer"
         android:persistent="false" />
 
     <SwitchPreference
         android:key="display_rotation_180"
         android:title="@string/display_rotation_180_title"
-        android:layout="?android:attr/preferenceLayoutChild"
         android:dependency="accelerometer"
         android:persistent="false" />
 
     <SwitchPreference
         android:key="display_rotation_270"
         android:title="@string/display_rotation_270_title"
-        android:layout="?android:attr/preferenceLayoutChild"
         android:dependency="accelerometer"
         android:persistent="false" />