diff --git a/libraries/chain/db_block.cpp b/libraries/chain/db_block.cpp
index df294957..38c21619 100644
--- a/libraries/chain/db_block.cpp
+++ b/libraries/chain/db_block.cpp
@@ -43,46 +43,6 @@
 
 #include <fc/smart_ref_impl.hpp>
 
-namespace {
-    
-   struct proposed_operations_digest_accumulator
-   {
-      typedef void result_type;
-      
-      void operator()(const graphene::chain::proposal_create_operation& proposal)
-      {
-         for (auto& operation: proposal.proposed_ops)
-         {
-            proposed_operations_digests.push_back(fc::digest(operation.op));
-         }
-      }
-       
-      //empty template method is needed for all other operation types
-      //we can ignore them, we are interested in only proposal_create_operation
-      template<class T>
-      void operator()(const T&) 
-      {}
-      
-      std::vector<fc::sha256> proposed_operations_digests;
-   };
-   
-   std::vector<fc::sha256> gather_proposed_operations_digests(const graphene::chain::transaction& trx)
-   {
-      proposed_operations_digest_accumulator digest_accumulator;
-      
-      for (auto& operation: trx.operations)
-      {
-         if( operation.which() != graphene::chain::operation::tag<graphene::chain::betting_market_group_create_operation>::value
-          && operation.which() != graphene::chain::operation::tag<graphene::chain::betting_market_create_operation>::value )
-            operation.visit(digest_accumulator);
-         else
-            edump( ("Found dup"));
-      }
-       
-      return digest_accumulator.proposed_operations_digests;
-   }
-}
-
 namespace graphene { namespace chain {
 
 bool database::is_known_block( const block_id_type& id )const