Remove enumerated_attribute gem (not working with latest rails?)

Gemfile

@@ -14,8 +14,6 @@ gem 'devise-kerberos-authenticatable',
   :git => 'git://github.com/atomaka/devise-kerberos-authenticatable.git'
 gem 'cancan'
 
-gem 'enumerated_attribute'
-
 
 # Gems used only for assets and not required
 # in production environments by default.

Gemfile.lock

@@ -73,8 +73,6 @@ GEM
       orm_adapter (~> 0.1)
       railties (~> 3.1)
       warden (~> 1.2.1)
-    enumerated_attribute (0.2.16)
-      meta_programming (>= 0.2.1)
     erubis (2.7.0)
     eventmachine (1.0.3)
     execjs (1.4.0)
@@ -99,7 +97,6 @@ GEM
     mail (2.5.4)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
-    meta_programming (0.2.2)
     meta_request (0.2.6)
       callsite
       rack-contrib
@@ -195,7 +192,6 @@ DEPENDENCIES
   coffee-rails (~> 3.2.1)
   devise
   devise-kerberos-authenticatable!
-  enumerated_attribute
   jquery-rails
   less-rails
   meta_request

app/models/alert.rb

@@ -1,5 +1,4 @@
 class Alert < ActiveRecord::Base
-  enum_attr :semester, %w(US13 FS13 SS14)
   attr_accessible :course, :department, :semester, :sections
   attr_protected :user_id
   attr_protected :alerted

app/views/alerts/_form.html.erb

@@ -35,7 +35,7 @@
   <div class="control-group">
     <%= f.label :semester, :class => 'control-label' %>
     <div class="controls">
-      <%= f.enum_select :semester %>
+      <%= f.text_field :semester, :class => 'text_field' %>
     </div>
   </div>