Remove deprecated EXCLUSIVE field from proto

Fixes: 123560880
Test: robotests
Change-Id: I6ff184dc5998d1e8eadfbfa16c8c7a85ebd75d98
diff --git a/protos/contextual_card_list.proto b/protos/contextual_card_list.proto
index 37383ba..69c3741 100644
--- a/protos/contextual_card_list.proto
+++ b/protos/contextual_card_list.proto
@@ -18,7 +18,6 @@
     SUGGESTION = 1;
     POSSIBLE = 2;
     IMPORTANT = 3;
-    EXCLUSIVE = 4 [deprecated = true];
     DEFERRED_SETUP = 5;
   }