node: Removed unused wallet-related methods from the Node interface.

src/interfaces/node.cpp

@@ -216,9 +216,6 @@ class NodeImpl : public Node
         return result;
     }
     CFeeRate getDustRelayFee() override { return ::dustRelayFee; }
-    CFeeRate getFallbackFee() override { CHECK_WALLET(return CWallet::fallbackFee); }
-    CFeeRate getPayTxFee() override { CHECK_WALLET(return ::payTxFee); }
-    void setPayTxFee(CFeeRate rate) override { CHECK_WALLET(::payTxFee = rate); }
     UniValue executeRpc(const std::string& command, const UniValue& params, const std::string& uri) override
     {
         JSONRPCRequest req;

src/interfaces/node.h

@@ -173,15 +173,6 @@ public:
     //! Get dust relay fee.
     virtual CFeeRate getDustRelayFee() = 0;
 
-    //! Get fallback fee.
-    virtual CFeeRate getFallbackFee() = 0;
-
-    //! Get pay tx fee.
-    virtual CFeeRate getPayTxFee() = 0;
-
-    //! Set pay tx fee.
-    virtual void setPayTxFee(CFeeRate rate) = 0;
-
     //! Execute rpc command.
     virtual UniValue executeRpc(const std::string& command, const UniValue& params, const std::string& uri) = 0;