Revert "Allows custom sdk header"

This reverts commit 05dd822.

Author: thomazfeitoza

lib/gn-auth.js

@@ -2,13 +2,13 @@
 
 var request = require('request');
 var q = require('q');
+var sdkPackage = require('../package.json');
 
 function GnAuth(options, constants) {
   this.constants = constants;
   this.clientId = options.client_id;
   this.clientSecret = options.client_secret;
   this.baseUrl = options.baseUrl;
-  this.sdkHeader = options.sdkHeader;
 }
 
 GnAuth.prototype.getAccessToken = function() {
@@ -18,7 +18,7 @@ GnAuth.prototype.getAccessToken = function() {
     url: this.baseUrl + this.constants.ENDPOINTS.authorize.route,
     json: true,
     headers: {
-      'api-sdk': this.sdkHeader
+      'api-sdk': 'node-' + sdkPackage.version
     },
     body: {
       grant_type: 'client_credentials'

lib/gn-endpoints.js

@@ -7,9 +7,6 @@ var sdkPackage = require('../package.json');
 
 function GnEndpoints(options, constants) {
   options.baseUrl = options.sandbox ? constants.URL.sandbox : constants.URL.production;
-  if (!options.sdkHeader) {
-    options.sdkHeader = 'node-' + sdkPackage.version;
-  }
   this.options = options;
   this.gnAuth = new GnAuth(options, constants);
   this.accessToken = null;
@@ -107,7 +104,7 @@ GnEndpoints.prototype.getParams = function(route) {
     url: [this.options.baseUrl, route, query].join(''),
     json: true,
     headers: {
-      'api-sdk': self.options.sdkHeader
+      'api-sdk': 'node-' + sdkPackage.version
     },
     body: this.body
   };