simplify work pacakge creation method

Signed-off-by: Florian Kraft <f.kraft@finn.de>

frontend/app/api/hal-api-resource.js

@@ -56,7 +56,6 @@ module.exports = function HALAPIResource($timeout, $q, PathHelper) {
     Hyperagent.configure('_', _);
   };
   return {
-
     setup: function(uri, params) {
       if (!params) {
         params = {};

frontend/app/services/work-package-service.js

@@ -78,13 +78,6 @@ module.exports = function($http,
   var WorkPackageService = {
     initializeWorkPackage: function(projectIdentifier, initialData) {
       var changes = _.clone(initialData);
-      if (initialData.type) {
-        changes._links = changes.links || {};
-        changes._links.type = {
-          href: initialData.type
-        };
-        delete changes.type;
-      }
       var wp = {
         embedded: {},
         props: {},

frontend/app/work_packages/controllers/work-package-new-controller.js

@@ -67,7 +67,11 @@ module.exports = function(
   function activate() {
     EditableFieldsState.forcedEditState = true;
     vm.loaderPromise = WorkPackageService.initializeWorkPackage($scope.projectIdentifier, {
-      type: PathHelper.apiV3TypePath($stateParams.type)
+      _links: {
+        type: {
+          href: PathHelper.apiV3TypePath($stateParams.type)
+        }
+      }
     }).then(function(wp) {
       vm.workPackage = wp;
       WorkPackageDisplayHelper.setFocus();