Remove reflection now we are building against L

Remove reflection and update changed renamed L APIs
now that branch has L sdk.

Change-Id: I223c6528487110eb328e2e229bbcbefb701e0c20
diff --git a/src/com/android/launcher3/AppInfo.java b/src/com/android/launcher3/AppInfo.java
index c85626b..bfcad84 100644
--- a/src/com/android/launcher3/AppInfo.java
+++ b/src/com/android/launcher3/AppInfo.java
@@ -94,7 +94,7 @@
     }
 
     private static int initFlags(LauncherActivityInfoCompat info) {
-        int appFlags = info.getApplicationFlags();
+        int appFlags = info.getApplicationInfo().flags;
         int flags = 0;
         if ((appFlags & android.content.pm.ApplicationInfo.FLAG_SYSTEM) == 0) {
             flags |= DOWNLOADED_FLAG;