Remove all label refrences from unified; change to folder

Remove labels text views from unified mail conversation list items.
Gmail will override with a new xml file that will provide a "folders" area
Change-Id: I443b8d73f253f046dfa8a8a68afa19e89bf7a85a
diff --git a/src/com/android/mail/providers/UIProvider.java b/src/com/android/mail/providers/UIProvider.java
index 428c4b0..5689227 100644
--- a/src/com/android/mail/providers/UIProvider.java
+++ b/src/com/android/mail/providers/UIProvider.java
@@ -186,8 +186,7 @@
         public static final int THREADED_CONVERSATIONS = 0x0800;
         /**
          * Whether the server supports allowing a conversation to be in multiple folders. (Or allows
-         * multiple labels on a single conversation, since labels and folders are interchangeable
-         * in this application.)
+         * multiple folders on a single conversation)
          */
         public static final int MULTIPLE_FOLDERS_PER_CONV = 0x1000;
         /**