require "rubygems" is obsolete in Ruby 1.9.3

guides/source/action_view_overview.textile

@@ -59,7 +59,6 @@ Now we'll create a simple "Hello World" application that uses the +titleize+ met
 *hello_world.rb:*
 
 <ruby>
-require 'rubygems'
 require 'active_support/core_ext/string/inflections'
 require 'rack'
 
@@ -94,7 +93,6 @@ Now we'll create the same "Hello World" application in Sinatra.
 *hello_world.rb:*
 
 <ruby>
-require 'rubygems'
 require 'action_view'
 require 'sinatra'
 

guides/source/active_model_basics.textile

@@ -95,7 +95,6 @@ h4. Dirty
 An object becomes dirty when an object is gone through one or more changes to its attributes and not yet saved. This gives the ability to check whether an object has been changed or not. It also has attribute based accessor methods. Lets consider a Person class with attributes first_name and last_name
 
 <ruby>
-require 'rubygems'
 require 'active_model'
 
 class Person

load_paths.rb

@@ -1,4 +1,3 @@
 # bust gem prelude
-require 'rubygems' unless defined? Gem
 require 'bundler'
 Bundler.setup

railties/lib/rails/commands/application.rb

@@ -19,7 +19,6 @@ else
   end
 end
 
-require 'rubygems' if ARGV.include?("--dev")
 require 'rails/generators'
 require 'rails/generators/rails/app/app_generator'
 

railties/lib/rails/commands/plugin_new.rb

@@ -1,5 +1,3 @@
-require 'rubygems' if ARGV.include?("--dev")
-
 if ARGV.first != "new"
   ARGV[0] = "--help"
 else

railties/lib/rails/generators/rails/app/templates/config/boot.rb

@@ -1,5 +1,3 @@
-require 'rubygems'
-
 # Set up gems listed in the Gemfile.
 ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
 

railties/lib/rails/generators/rails/plugin_new/templates/rails/boot.rb

@@ -1,4 +1,3 @@
-require 'rubygems'
 gemfile = File.expand_path('../../../../Gemfile', __FILE__)
 
 if File.exist?(gemfile)

railties/lib/rails/generators/test_unit/plugin/templates/test_helper.rb

@@ -1,3 +1,2 @@
-require 'rubygems'
 require 'minitest/autorun'
 require 'active_support'

tools/profile

@@ -7,7 +7,6 @@ ENV['NO_RELOAD'] ||= '1'
 ENV['RAILS_ENV'] ||= 'development'
 
 GC.enable_stats
-require 'rubygems'
 Gem.source_index
 require 'benchmark'