Disable the info icon

- Show disabled info icon.
- Remove the duplicated resouce files.

Fix: 186608804
Fix: 182870810
Test: manual test
Change-Id: I8c0ddc8f76921965073699d5bd029dc1b9d59fb0

res/layout/preference_widget_info.xml

@@ -16,7 +16,7 @@
 
 <ImageView
     xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/settings_button"
+    android:id="@+id/info_button"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:layout_gravity="center"
@@ -24,5 +24,4 @@
     android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
     android:background="?android:attr/selectableItemBackground"
     android:scaleType="center"
-    android:src="@drawable/ic_info_outline_24"
-    android:contentDescription="@string/settings_button" />
+    android:src="@drawable/ic_info_selector" />