Remove jquery-idletimer

Gemfile

@@ -104,7 +104,6 @@ source "https://rails-assets.org" do
   # jQuery plugins
 
   gem "rails-assets-jeresig--jquery.hotkeys",       "0.2.0"
-  gem "rails-assets-jquery-idletimer",              "1.0.1"
   gem "rails-assets-jquery-placeholder",            "2.1.2"
   gem "rails-assets-jquery-textchange",             "0.2.3"
   gem "rails-assets-perfect-scrollbar",             "0.6.3"

Gemfile.lock

@@ -533,7 +533,6 @@ GEM
     rails-assets-jquery-colorbox (1.5.15)
       rails-assets-jquery (>= 1.3.2)
     rails-assets-jquery-fullscreen (1.1.4)
-    rails-assets-jquery-idletimer (1.0.1)
     rails-assets-jquery-placeholder (2.1.2)
       rails-assets-jquery (>= 1.6)
     rails-assets-jquery-simulate (1.0.1)
@@ -824,7 +823,6 @@ DEPENDENCIES
   rails-assets-jasmine-ajax (= 3.1.1)!
   rails-assets-jeresig--jquery.hotkeys (= 0.2.0)!
   rails-assets-jquery (= 1.11.2)!
-  rails-assets-jquery-idletimer (= 1.0.1)!
   rails-assets-jquery-placeholder (= 2.1.2)!
   rails-assets-jquery-simulate (= 1.0.1)!
   rails-assets-jquery-simulate-ext (= 1.3.0)!

app/assets/javascripts/main.js

@@ -17,7 +17,6 @@
 //= require jquery.events.input
 //= require jakobmattsson-jquery-elastic
 //= require jquery.mentionsInput
-//= require jquery-idletimer/dist/idle-timer
 //= require jquery.infinitescroll-custom
 //= require jquery.autocomplete-custom
 //= require jquery-ui/core