Remove browser detection

app/assets/javascripts/browser_detection.js

-// @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL-v3-or-Later
-
-jQuery.browser = {};
-jQuery.browser.mozilla = /mozilla/.test(navigator.userAgent.toLowerCase()) && !/webkit/.test(navigator.userAgent.toLowerCase());
-jQuery.browser.webkit = /webkit/.test(navigator.userAgent.toLowerCase());
-jQuery.browser.opera = /opera/.test(navigator.userAgent.toLowerCase());
-jQuery.browser.msie = /msie/.test(navigator.userAgent.toLowerCase());
-// @license-end

app/assets/javascripts/main.js

@@ -12,7 +12,6 @@
 //= require jquery.charcount
 //= require jquery-placeholder
 //= require rails-timeago
-//= require browser_detection
 //= require jquery.events.input
 //= require jakobmattsson-jquery-elastic
 //= require jquery.mentionsInput

app/assets/javascripts/widgets/lightbox.js

@@ -116,12 +116,6 @@ jQuery.fn.center = (function() {
         images = selectedImage.parents(self.options.imageParent).find(self.options.imageSelector),
         imageThumb;
 
-      if( $.browser.msie ) {
-        /* No fancy schmancy lightbox for IE, because it doesn't work in IE */
-        window.open(imageUrl);
-        return;
-      }
-
       self.imageset.html("");
       images.each(function(index, image) {
         image = $(image);