coinview: remove view.spend.

lib/coins/coinview.js

@@ -173,7 +173,20 @@ CoinView.prototype.addOutput = function addOutput(prevout, output) {
  */
 
 CoinView.prototype.spendOutput = function spendOutput(prevout) {
-  return this.spend(prevout.hash, prevout.index);
+  let coins = this.get(prevout.hash);
+  let coin;
+
+  if (!coins)
+    return false;
+
+  coin = coins.spend(prevout.index);
+
+  if (!coin)
+    return false;
+
+  this.undo.push(coin);
+
+  return true;
 };
 
 /**
@@ -191,29 +204,6 @@ CoinView.prototype.removeOutput = function removeOutput(prevout) {
   return coins.remove(prevout.index);
 };
 
-/**
- * Spend a coin from coins object.
- * @param {Hash} hash
- * @param {Number} index
- * @returns {Boolean}
- */
-
-CoinView.prototype.spend = function spend(hash, index) {
-  let coins = this.get(hash);
-
-  if (!coins)
-    return false;
-
-  let coin = coins.spend(index);
-
-  if (!coin)
-    return false;
-
-  this.undo.push(coin);
-
-  return true;
-};
-
 /**
  * Get a single entry by input.
  * @param {Input} input