Remove package:clean task

Introduced in d6f2000a67cc63aa67414c75ce77de671824ec52 and was only used by Action Cable. Now handled by Action Cable’s assets:compile task.

actioncable/Rakefile

@@ -8,7 +8,6 @@ dir = File.dirname(__FILE__)
 task :default => :test
 
 task :package => "assets:compile"
-task "package:clean"
 
 Rake::TestTask.new do |t|
   t.libs << "test"

actionmailer/Rakefile

@@ -4,7 +4,6 @@ desc "Default Task"
 task default: [ :test ]
 
 task :package
-task "package:clean"
 
 # Run the unit tests
 Rake::TestTask.new { |t|

actionpack/Rakefile

@@ -6,7 +6,6 @@ desc "Default Task"
 task :default => :test
 
 task :package
-task "package:clean"
 
 # Run the unit tests
 Rake::TestTask.new do |t|

actionview/Rakefile

@@ -4,7 +4,6 @@ desc "Default Task"
 task :default => :test
 
 task :package
-task "package:clean"
 
 # Run the unit tests
 

activejob/Rakefile

@@ -8,7 +8,6 @@ task default: :test
 task test: 'test:default'
 
 task :package
-task "package:clean"
 
 namespace :test do
   desc 'Run all adapter tests'

activemodel/Rakefile

@@ -5,7 +5,6 @@ dir = File.dirname(__FILE__)
 task :default => :test
 
 task :package
-task "package:clean"
 
 Rake::TestTask.new do |t|
   t.libs << "test"

activerecord/Rakefile

@@ -21,7 +21,6 @@ desc 'Run mysql2, sqlite, and postgresql tests by default'
 task :default => :test
 
 task :package
-task "package:clean"
 
 desc 'Run mysql2, sqlite, and postgresql tests'
 task :test do

activesupport/Rakefile

@@ -3,7 +3,6 @@ require 'rake/testtask'
 task :default => :test
 
 task :package
-task "package:clean"
 
 Rake::TestTask.new do |t|
   t.libs << 'test'

railties/Rakefile

@@ -3,7 +3,6 @@ require 'rake/testtask'
 task :default => :test
 
 task :package
-task "package:clean"
 
 desc "Run all unit tests"
 task :test => 'test:isolated'

tasks/release.rb

@@ -13,7 +13,6 @@
 
     task :clean do
       rm_f gem
-      sh "cd #{framework} && bundle exec rake package:clean" unless framework == "rails"
     end
 
     task :update_versions do