Simplify density compatibility to a boolean.

Instead of a list, we now just have a single boolean indicating whether an
application is density aware, and this set set to true by default as of
Donut.
diff --git a/services/java/com/android/server/am/ActivityManagerService.java b/services/java/com/android/server/am/ActivityManagerService.java
index d9c40ec..8e4c897 100644
--- a/services/java/com/android/server/am/ActivityManagerService.java
+++ b/services/java/com/android/server/am/ActivityManagerService.java
@@ -184,8 +184,7 @@
     static final int LOG_BOOT_PROGRESS_ENABLE_SCREEN = 3050;
 
     // The flags that are set for all calls we make to the package manager.
-    static final int STOCK_PM_FLAGS = PackageManager.GET_SHARED_LIBRARY_FILES
-            | PackageManager.GET_SUPPORTS_DENSITIES;
+    static final int STOCK_PM_FLAGS = PackageManager.GET_SHARED_LIBRARY_FILES;
     
     private static final String SYSTEM_SECURE = "ro.secure";