Removed deprecated |map| block argument from routing docs since it is no longer generated in edge Rails config/routes.rb

Didn't touch plugins guide since I'm not too clear on how routes work in plugins.

actionpack/lib/action_dispatch/routing.rb

@@ -31,7 +31,7 @@ module ActionDispatch
   # Think of creating routes as drawing a map for your requests. The map tells
   # them where to go based on some predefined pattern:
   #
-  #   AppName::Application.routes.draw do |map|
+  #   AppName::Application.routes.draw do
   #     Pattern 1 tells some request to go to one place
   #     Pattern 2 tell them to go to another
   #     ...

actionpack/lib/action_view/helpers/atom_feed_helper.rb

@@ -10,7 +10,7 @@ module AtomFeedHelper
       # Full usage example:
       #
       #   config/routes.rb:
-      #     Basecamp::Application.routes.draw do |map|
+      #     Basecamp::Application.routes.draw do
       #       resources :posts
       #       root :to => "posts#index"
       #     end

railties/guides/source/getting_started.textile

@@ -325,7 +325,7 @@ We need to do this as Rails will deliver any static file in the +public+ directo
 Now, you have to tell Rails where your actual home page is located. Open the file +config/routes.rb+ in your editor. This is your application's _routing file_ which holds entries in a special DSL (domain-specific language) that tells Rails how to connect incoming requests to controllers and actions. There are only comments in this file, so we need to add at the top the following:
 
 <ruby>
-Blog::Application.routes.draw do |map|
+Blog::Application.routes.draw do
 
   root :to => "home#index"
 

railties/guides/source/i18n.textile

@@ -287,7 +287,7 @@ You most probably have something like this in one of your applications:
 
 <ruby>
 # config/routes.rb
-Yourapp::Application.routes.draw do |map|
+Yourapp::Application.routes.draw do
   root :to => "home#index"
 end