Remove "under construction" (#3014)

Remove "under construction"  for "Developing with Angular" book

free-programming-books.md

@@ -1499,7 +1499,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [AngularJS Succinctly](https://www.syncfusion.com/resources/techportal/ebooks/angularjs) (PDF, Kindle) (email address *requested*, not required)
 * [AngularJs vs EmberJs](http://angularjs-emberjs-compare.bguiz.com)
 * [AngularJS with Ruby on Rails](http://angular-rails.com)
-* [Developing with Angular](https://leanpub.com/developing-with-angular/) - Denys Vuika *(Leanpub account or valid email requested)* (:construction: *in process*)
+* [Developing with Angular](https://leanpub.com/developing-with-angular/) - Denys Vuika *(Leanpub account or valid email requested)*
 * [Recipes with Angular.js](https://leanpub.com/recipes-with-angular-js/read) - Frederik Dietz
 * [Seven-Part Introduction to Angular](http://ngokevin.com/blog/angular-1/)
 * [Unit Testing Best Practices in AngularJS](http://andyshora.com/unit-testing-best-practices-angularjs.html)