MOVEONLY: CBlockUndo from main.h to undo.h

src/main.h

@@ -25,7 +25,6 @@
 #include "tinyformat.h"
 #include "txmempool.h"
 #include "uint256.h"
-#include "undo.h"
 
 #include <algorithm>
 #include <exception>
@@ -302,21 +301,6 @@ bool IsStandardTx(const CTransaction& tx, std::string& reason);
 
 bool IsFinalTx(const CTransaction &tx, int nBlockHeight = 0, int64_t nBlockTime = 0);
 
-/** Undo information for a CBlock */
-class CBlockUndo
-{
-public:
-    std::vector<CTxUndo> vtxundo; // for all but the coinbase
-
-    ADD_SERIALIZE_METHODS;
-
-    template <typename Stream, typename Operation>
-    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
-        READWRITE(vtxundo);
-    }
-};
-
-
 /** 
  * Closure representing one script verification
  * Note that this stores references to the spending transaction