Update MultiSamlStrategy test.

Author: bradydoll

test/multiSamlStrategy.js

@@ -57,12 +57,10 @@ describe("strategy#authenticate", function () {
   it("passes options on to saml strategy", function (done) {
     var passportOptions = {
       passReqToCallback: true,
-      authnRequestBinding: "HTTP-POST",
       getSamlOptions: function (req, fn) {
         try {
           fn();
           strategy._passReqToCallback.should.eql(true);
-          strategy._authnRequestBinding.should.eql("HTTP-POST");
           done();
         } catch (err2) {
           done(err2);
@@ -137,12 +135,10 @@ describe("strategy#logout", function () {
   it("passes options on to saml strategy", function (done) {
     var passportOptions = {
       passReqToCallback: true,
-      authnRequestBinding: "HTTP-POST",
       getSamlOptions: function (req, fn) {
         try {
           fn();
           strategy._passReqToCallback.should.eql(true);
-          strategy._authnRequestBinding.should.eql("HTTP-POST");
           done();
         } catch (err2) {
           done(err2);
@@ -216,12 +212,10 @@ describe("strategy#generateServiceProviderMetadata", function () {
   it("passes options on to saml strategy", function (done) {
     var passportOptions = {
       passReqToCallback: true,
-      authnRequestBinding: "HTTP-POST",
       getSamlOptions: function (req, fn) {
         try {
           fn();
           strategy._passReqToCallback.should.eql(true);
-          strategy._authnRequestBinding.should.eql("HTTP-POST");
           done();
         } catch (err2) {
           done(err2);