Removing dependency on wallpaper size settings from launcher

> Moving wallpaper desired width calculation to xml

Bug: 14470153
Change-Id: I8803af158861507a40e5d55e9aa6d515be47eefa
diff --git a/src/com/android/launcher3/LauncherCallbacks.java b/src/com/android/launcher3/LauncherCallbacks.java
index fc7ff70..635d413 100644
--- a/src/com/android/launcher3/LauncherCallbacks.java
+++ b/src/com/android/launcher3/LauncherCallbacks.java
@@ -105,6 +105,7 @@
     public View getIntroScreen();
     public boolean shouldMoveToDefaultScreenOnHomeIntent();
     public boolean hasSettings();
+    @Deprecated
     public boolean overrideWallpaperDimensions();
     public boolean isLauncherPreinstalled();
     public AllAppsSearchBarController getAllAppsSearchBarController();