Add method removeTxWithSpentInputs to wallet

js/models/core/TxProposals.js

@@ -44,6 +44,13 @@ TxProposals.prototype.getNtxids = function() {
   return Object.keys(this.txps);
 };
 
+TxProposals.prototype.deleteOne = function(ntxid) {
+  var txp = this.txps[ntxid];
+  if (!txp)
+    throw new Error('Unknown TXP: ' + ntxid);
+  delete this.txps[ntxid];
+};
+
 TxProposals.prototype.deleteAll = function() {
   this.txps = {};
 };

js/models/core/Wallet.js

@@ -1525,6 +1525,42 @@ Wallet.prototype.getUnspent = function(cb) {
   });
 };
 
+Wallet.prototype.removeTxWithSpentInputs = function(cb) {
+  var self = this;
+
+  var txps = this.getTxProposals();
+
+  var inputs = [];
+  txps.forEach(function (txp) {
+    txp.builder.utxos.forEach(function (utxo) {
+      inputs.push({ ntxid: txp.ntxid, txid: utxo.txid, vout: utxo.vout });
+    });
+  });
+  if (inputs.length === 0)
+    return;
+
+  this.blockchain.getUnspent(this.getAddressesStr(), function(err, unspentList) {
+    if (err) {
+      return cb(err);
+    }
+    
+    unspentList.forEach(function (unspent) {
+      inputs.forEach(function (input) {
+        input.unspent = input.unspent || (input.txid === unspent.txid && input.vout === unspent.vout);
+      });
+    });
+
+    inputs.forEach(function (input) {
+      if (!input.unspent) {
+        self.txProposals.deleteOne(input.ntxid);
+      }
+    });
+
+    self.emit('txProposalsUpdated');
+    self.store();
+  });
+
+};
 
 Wallet.prototype.createTx = function(toAddress, amountSatStr, comment, opts, cb) {
   var self = this;