interfaces: Remove unused getDefaultChangeType

Author: MarcoFalke

src/interfaces/wallet.cpp

@@ -438,7 +438,6 @@ class WalletImpl : public Wallet
     bool canGetAddresses() override { return m_wallet->CanGetAddresses(); }
     bool privateKeysDisabled() override { return m_wallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS); }
     OutputType getDefaultAddressType() override { return m_wallet->m_default_address_type; }
-    OutputType getDefaultChangeType() override { return m_wallet->m_default_change_type; }
     CAmount getDefaultMaxTxFee() override { return m_wallet->m_default_max_tx_fee; }
     void remove() override
     {

src/interfaces/wallet.h

@@ -256,9 +256,6 @@ class Wallet
     // Get default address type.
     virtual OutputType getDefaultAddressType() = 0;
 
-    // Get default change type.
-    virtual OutputType getDefaultChangeType() = 0;
-
     //! Get max tx fee.
     virtual CAmount getDefaultMaxTxFee() = 0;