refactor: Remove unused code

Author: MarcoFalke

src/chainparams.cpp

@@ -559,9 +559,3 @@ void SelectParams(const std::string& network)
     SelectBaseParams(network);
     globalChainParams = CreateChainParams(gArgs, network);
 }
-
-std::ostream& operator<<(std::ostream& o, const AssumeutxoData& aud)
-{
-    o << strprintf("AssumeutxoData(%s, %s)", aud.hash_serialized.ToString(), aud.nChainTx);
-    return o;
-}

src/chainparams.h

@@ -41,8 +41,6 @@ struct AssumeutxoData {
     const unsigned int nChainTx;
 };
 
-std::ostream& operator<<(std::ostream& o, const AssumeutxoData& aud);
-
 using MapAssumeutxo = std::map<int, const AssumeutxoData>;
 
 /**

src/coins.h

@@ -20,8 +20,6 @@
 #include <functional>
 #include <unordered_map>
 
-class ChainstateManager;
-
 /**
  * A UTXO entry.
  *