rm integration tests

Author: dcousens

README.md

@@ -100,9 +100,6 @@ The below examples are implemented as integration tests, they should be very eas
 
 - [Generate a random address](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/basic.js#L9)
 - [Generate a address from a SHA256 hash](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/basic.js#L20)
-- [Generate a address and WIF for Litecoin](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/basic.js#L30)
-- [Import an address via WIF](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/basic.js#L44)
-- [Create a Transaction](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/basic.js#L51)
 - [Generate a address and WIF for Litecoin](https://github.com/bitcoin/bitcoinjs-lib/blob/master/test/integration/basic.js#L29)
 - [Import an address via WIF](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/basic.js#L43)
 - [Create a Transaction](https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/test/integration/basic.js#L50)

test/integration/advanced.js

@@ -1,28 +1,11 @@
 /* global describe, it */
 
-var assert = require('assert')
 var bitcoin = require('../../')
 var blockchain = require('./_blockchain')
 
 describe('bitcoinjs-lib (advanced)', function () {
-  it('can sign a Bitcoin message', function () {
-    var keyPair = bitcoin.ECPair.fromWIF('5KYZdUEo39z3FPrtuX2QbbwGnNP5zTd7yyr2SC1j299sBCnWjss')
-    var message = 'This is an example of a signed message.'
-
-    var signature = bitcoin.message.sign(keyPair, message)
-    assert.strictEqual(signature.toString('base64'), 'G9L5yLFjti0QTHhPyFrZCT1V/MMnBtXKmoiKDZ78NDBjERki6ZTQZdSMCtkgoNmp17By9ItJr8o7ChX0XxY91nk=')
-  })
-
-  it('can verify a Bitcoin message', function () {
-    var address = '1HZwkjkeaoZfTSaJxDw6aKkxp45agDiEzN'
-    var signature = 'HJLQlDWLyb1Ef8bQKEISzFbDAKctIlaqOpGbrk3YVtRsjmC61lpE5ErkPRUFtDKtx98vHFGUWlFhsh3DiW6N0rE'
-    var message = 'This is an example of a signed message.'
-
-    assert(bitcoin.message.verify(address, signature, message))
-  })
-
-  it('can create a transaction using OP_RETURN', function (done) {
-    this.timeout(30000)
+  it('can create an OP_RETURN transaction', function (done) {
+    this.timeout(20000)
 
     var network = bitcoin.networks.testnet
     var keyPair = bitcoin.ECPair.makeRandom({ network: network })