interfaces: Remove unused is_final

src/interfaces/wallet.h

@@ -405,7 +405,6 @@ struct WalletTxStatus
     int depth_in_main_chain;
     unsigned int time_received;
     uint32_t lock_time;
-    bool is_final;
     bool is_trusted;
     bool is_abandoned;
     bool is_coinbase;

src/wallet/interfaces.cpp

@@ -90,7 +90,6 @@ WalletTxStatus MakeWalletTxStatus(const CWallet& wallet, const CWalletTx& wtx)
     result.depth_in_main_chain = wallet.GetTxDepthInMainChain(wtx);
     result.time_received = wtx.nTimeReceived;
     result.lock_time = wtx.tx->nLockTime;
-    result.is_final = wallet.chain().checkFinalTx(*wtx.tx);
     result.is_trusted = CachedTxIsTrusted(wallet, wtx);
     result.is_abandoned = wtx.isAbandoned();
     result.is_coinbase = wtx.IsCoinBase();