From 85eb2cef33fcf3e5c785d54b172eb3e8f932e3cb Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Sun, 13 Oct 2013 22:15:48 +0200
Subject: Do not use the redundant BestInvalidWork record in the block
 database.

As block index entries have a flag for marking invalid blocks, the
'best invalid work' information can be derived from there. In addition,
remove the global from main.h
---
 src/txdb.cpp | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

(limited to 'src/txdb.cpp')

diff --git a/src/txdb.cpp b/src/txdb.cpp
index 5e7b78296c..27d6caf4d9 100644
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -74,13 +74,9 @@ bool CBlockTreeDB::WriteBlockIndex(const CDiskBlockIndex& blockindex)
     return Write(make_pair('b', blockindex.GetBlockHash()), blockindex);
 }
 
-bool CBlockTreeDB::ReadBestInvalidWork(CBigNum& bnBestInvalidWork)
-{
-    return Read('I', bnBestInvalidWork);
-}
-
 bool CBlockTreeDB::WriteBestInvalidWork(const CBigNum& bnBestInvalidWork)
 {
+    // Obsolete; only written for backward compatibility.
     return Write('I', bnBestInvalidWork);
 }
 
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