Removing icon_type column
Icon type is not used consistently. It is used initially
during the loader. Afterwards, we save both the icon and resource to the db.
Instead of changing the logic to always read the shortcut-resource first, and fallback to the bitmap if the resource is not available,
always write the bitmap to DB whenever the shortcut is edited.

Change-Id: I0ea5e88f8904bd3250ca669220b3e5d6aeef1bfd
diff --git a/protos/backup.proto b/protos/backup.proto
index c3f27e1..62f935c 100644
--- a/protos/backup.proto
+++ b/protos/backup.proto
@@ -97,7 +97,7 @@
   optional string appWidgetProvider = 12;
   optional string intent = 13;
   optional string uri = 14;
-  optional int32 iconType = 15;
+  optional int32 iconType = 15 [deprecated = true];
   optional string iconPackage = 16;
   optional string iconResource = 17;
   optional bytes icon = 18;