remove sprockets dependency

Gemfile.lock

@@ -21,7 +21,6 @@ PATH
       rack (~> 1.4.5)
       rack-cache (~> 1.2)
       rack-test (~> 0.6.1)
-      sprockets (~> 2.2.1)
     activemodel (3.2.19)
       activesupport (= 3.2.19)
       builder (~> 3.2)
@@ -62,7 +61,6 @@ GEM
     builder (3.2.2)
     erubis (2.7.0)
     execjs (2.0.2)
-    hike (1.2.3)
     i18n (0.6.11)
     journey (1.0.4)
     jquery-rails (3.1.0)
@@ -93,14 +91,8 @@ GEM
     rake (10.2.2)
     rdoc (3.12.2)
       json (~> 1.4)
-    sprockets (2.2.2)
-      hike (~> 1.2)
-      multi_json (~> 1.0)
-      rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
     sqlite3 (1.3.9)
     thor (0.19.1)
-    tilt (1.4.1)
     treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)

actionpack/actionpack.gemspec

@@ -26,7 +26,6 @@ Gem::Specification.new do |s|
   s.add_dependency('rack',          '~> 1.4.5')
   s.add_dependency('rack-test',     '~> 0.6.1')
   s.add_dependency('journey',       '~> 1.0.4')
-  s.add_dependency('sprockets',     '~> 2.2.1')
   s.add_dependency('erubis',        '~> 2.7.0')
 
   s.add_development_dependency('tzinfo', '~> 0.3.29')

railties/lib/rails/all.rb

@@ -6,7 +6,6 @@ require "rails"
   action_mailer
   active_resource
   rails/test_unit
-  sprockets
 ).each do |framework|
   begin
     require "#{framework}/railtie"