remove useless methods.

lib/bitcoind.js

@@ -519,26 +519,6 @@ Transaction.fill = function(tx, options) {
   return isTx ? true : tx;
 };
 
-Transaction.prototype.getSerializeSize = function() {
-  ;
-};
-
-Transaction.prototype.serialize = function() {
-  ;
-};
-
-Transaction.prototype.unserialize = function() {
-  ;
-};
-
-Transaction.prototype.setNull = function() {
-  ;
-};
-
-Transaction.prototype.isNull = function() {
-  ;
-};
-
 // NOTE: Could just call tx.GetHash().ToString() in C++
 Transaction.prototype.hash =
 Transaction.prototype.getHash = function(enc) {
@@ -550,34 +530,10 @@ Transaction.prototype.getHash = function(enc) {
     : utils.dsha256(this.toBinary());
 };
 
-Transaction.prototype.getValueOut = function() {
-  ;
-};
-
-Transaction.prototype.computePriority = function() {
-  ;
-};
-
 Transaction.prototype.isCoinbase = function() {
   return this.vin.length === 1 && this.vin[0].coinbase;
 };
 
-Transaction.prototype.equal = function() {
-  ;
-};
-
-Transaction.prototype.notEqual = function() {
-  ;
-};
-
-Transaction.prototype.toString = function() {
-  ;
-};
-
-Transaction.prototype.print = function() {
-  ;
-};
-
 Transaction.prototype.toHex = function() {
   return this.hex = this.hex || Transaction.toHex(this);
 };