Remove chosen gem

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

Gemfile

@@ -144,7 +144,6 @@ gem "therubyracer"
 gem 'turbolinks'
 gem 'jquery-turbolinks'
-gem 'chosen-rails',     "1.0.1"
 gem 'select2-rails'
 gem 'jquery-atwho-rails', "~> 0.3.3"
 gem "jquery-rails",     "2.1.3"

Gemfile.lock

@@ -71,12 +71,6 @@ GEM
     celluloid (0.15.2)
       timers (~> 1.1.0)
     charlock_holmes (0.6.9.4)
-    chosen-rails (1.0.1)
-      coffee-rails (>= 3.2)
-      compass-rails (>= 1.0)
-      railties (>= 3.0)
-      sass-rails (>= 3.2)
-    chunky_png (1.2.9)
     cliver (0.2.2)
     code_analyzer (0.4.3)
       sexp_processor
@@ -92,12 +86,6 @@ GEM
     coffee-script-source (1.6.3)
     colored (1.2)
     colorize (0.5.8)
-    compass (0.12.2)
-      chunky_png (~> 1.2)
-      fssm (>= 0.2.7)
-      sass (~> 3.1)
-    compass-rails (1.1.1)
-      compass (>= 0.12.2)
     connection_pool (1.2.0)
     coveralls (0.7.0)
       multi_json (~> 1.3)
@@ -161,7 +149,6 @@ GEM
       dotenv (>= 0.7)
       thor (>= 0.13.6)
     formatador (0.2.4)
-    fssm (0.2.10)
     gemoji (1.3.1)
     gherkin-ruby (0.3.1)
       racc
@@ -572,7 +559,6 @@ DEPENDENCIES
   bootstrap-sass (~> 3.0)
   capybara
   carrierwave
-  chosen-rails (= 1.0.1)
   coffee-rails
   colored
   coveralls