Remove unused code

app/helpers/documents_helper.rb

@@ -8,16 +8,6 @@ module DocumentsHelper
     document.errors[:attachment].join(', ') if document.errors.key?(:attachment)
   end
 
-  def document_source_options
-    Hash[Document.sources.map { |k,v| [k, Document.human_attribute_name("document.#{k}")] }]
-  end
-
-  def document_link_url(document)
-    uri = URI.parse(document.link)
-    return document.link if uri.scheme == "http" || uri.scheme == "https"
-    "http://#{document.link}"
-  end
-
   def bytesToMeg(bytes)
     bytes / Numeric::MEGABYTE
   end

app/models/document.rb

@@ -7,12 +7,10 @@ class Document < ActiveRecord::Base
   belongs_to :user
   belongs_to :documentable, polymorphic: true
 
-  # validates_attachment :attachment, presence: true
-  validate :attachment_presence
-  # validates :attachment_prensence
   # Disable paperclip security validation due to polymorphic configuration
   # Paperclip do not allow to user Procs on valiations definition
   do_not_validate_attachment_file_type :attachment
+  validate :attachment_presence
   validate :validate_attachment_content_type,         if: -> { attachment.present? }
   validate :validate_attachment_size,                 if: -> { attachment.present? }
   validates :title, presence: true