Removed broken backgrounding

lib/paperclip/attachment.rb

@@ -36,7 +36,6 @@ module Paperclip
       @storage           = options[:storage]
       @whiny             = options[:whiny_thumbnails]
       @convert_options   = options[:convert_options] || {}
-      @background        = options[:background].nil? ? instance.respond_to?(:spawn) : options[:background]
       @processors        = options[:processors] || [:thumbnail]
       @options           = options
       @queued_for_delete = []
@@ -334,12 +333,10 @@ module Paperclip
 
     def post_process #:nodoc:
       return if @queued_for_write[:original].nil?
-      background do
       return if fire_events(:before)
       post_process_styles
       return if fire_events(:after)
     end
-    end
 
     def fire_events(which)
       return true if callback(:"#{which}_post_process") == false
@@ -362,16 +359,6 @@ module Paperclip
       end
     end
 
-    # When processing, if the spawn plugin is installed, processing can be done in
-    # a background fork or thread if desired.
-    def background(&blk)
-      # if instance.respond_to?(:spawn) && @background
-      #   instance.spawn(&blk)
-      # else
-        blk.call
-      # end
-    end
-
     def callback which #:nodoc:
       instance.run_callbacks(which, @queued_for_write){|result, obj| result == false }
     end