remove unused data from in-mem blockchain (small mem savings)

src/cryptonote_core/blockchain_storage.h

@@ -38,6 +38,7 @@
 #include <boost/multi_index/member.hpp>
 #include <boost/foreach.hpp>
 #include <atomic>
+#include <cstddef>
 
 #include "syncobj.h"
 #include "string_tools.h"
@@ -65,7 +66,6 @@ namespace cryptonote
     {
       transaction tx;
       uint64_t m_keeper_block_height;
-      size_t m_blob_size;
       std::vector<uint64_t> m_global_output_indexes;
     };
 

src/cryptonote_core/blockchain_storage_boost_serialization.h

@@ -29,6 +29,7 @@
 // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
 
 #pragma once 
+#include <cstddef>
 
 namespace boost
 {
@@ -41,7 +42,8 @@ namespace boost
     {
       ar & te.tx;
       ar & te.m_keeper_block_height;
-      ar & te.m_blob_size;
+      size_t dummy;
+      ar & dummy; // formerly te.m_blob_size;
       ar & te.m_global_output_indexes;
     }