Remove application.js

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/assets/javascripts/application.js

-// This is a manifest file that'll be compiled into including all the files listed below.
-// Add new JavaScript/Coffee code in separate files in this directory and they'll automatically
-// be included in the compiled file accessible from http://example.com/assets/application.js
-// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
-// the compiled file.
-//
-//= require jquery
-//= require jquery.ui.all
-//= require jquery_ujs
-//= require jquery.cookie
-//= require jquery.endless-scroll
-//= require jquery.highlight
-//= require jquery.history
-//= require jquery.waitforimages
-//= require jquery.atwho
-//= require jquery.scrollto
-//= require jquery.blockUI
-//= require turbolinks
-//= require jquery.turbolinks
-//= require bootstrap
-//= require select2
-//= require raphael
-//= require g.raphael-min
-//= require g.bar-min
-//= require branch-graph
-//= require highlightjs.min
-//= require ace/ace
-//= require_tree .
-//= require d3
-//= require underscore
-//= require nprogress
-//= require nprogress-turbolinks