Do not call BatchWrite* for sprout

src/txdb.cpp

@@ -199,10 +199,10 @@ bool CCoinsViewDB::BatchWrite(CCoinsMap &mapCoins,
         mapCoins.erase(itOld);
     }
 
-    ::BatchWriteAnchors<CAnchorsSproutMap, CAnchorsSproutMap::iterator, CAnchorsSproutCacheEntry, SproutMerkleTree>(batch, mapSproutAnchors, DB_SPROUT_ANCHOR);
+    //::BatchWriteAnchors<CAnchorsSproutMap, CAnchorsSproutMap::iterator, CAnchorsSproutCacheEntry, SproutMerkleTree>(batch, mapSproutAnchors, DB_SPROUT_ANCHOR);
     ::BatchWriteAnchors<CAnchorsSaplingMap, CAnchorsSaplingMap::iterator, CAnchorsSaplingCacheEntry, SaplingMerkleTree>(batch, mapSaplingAnchors, DB_SAPLING_ANCHOR);
 
-    ::BatchWriteNullifiers(batch, mapSproutNullifiers, DB_NULLIFIER);
+    //::BatchWriteNullifiers(batch, mapSproutNullifiers, DB_NULLIFIER);
     ::BatchWriteNullifiers(batch, mapSaplingNullifiers, DB_SAPLING_NULLIFIER);
 
     if (!hashBlock.IsNull())