Remove gitlab:users:clear_all_authentication_tokens rake task

doc/raketasks/user_management.md

@@ -149,18 +149,3 @@ cp config/secrets.yml.bak config/secrets.yml
 sudo /etc/init.d/gitlab start
 
 ```
-
-## Clear authentication tokens for all users. Important! Data loss!
-
-Clear authentication tokens for all users in the GitLab database. This
-task is useful if your users' authentication tokens might have been exposed in
-any way. All the existing tokens will become invalid, and new tokens are
-automatically generated upon sign-in or user modification.
-
-```
-# omnibus-gitlab
-sudo gitlab-rake gitlab:users:clear_all_authentication_tokens
-
-# installation from source
-bundle exec rake gitlab:users:clear_all_authentication_tokens RAILS_ENV=production
-```

lib/tasks/gitlab/users.rake

@@ -1,11 +0,0 @@
-namespace :gitlab do
-  namespace :users do
-    desc "GitLab | Clear the authentication token for all users"
-    task clear_all_authentication_tokens: :environment  do |t, args|
-      # Do small batched updates because these updates will be slow and locking
-      User.select(:id).find_in_batches(batch_size: 100) do |batch|
-        User.where(id: batch.map(&:id)).update_all(authentication_token: nil)
-      end
-    end
-  end
-end

spec/tasks/gitlab/users_rake_spec.rb

@@ -1,38 +0,0 @@
-require 'spec_helper'
-require 'rake'
-
-describe 'gitlab:users namespace rake task' do
-  let(:enable_registry) { true }
-
-  before :all do
-    Rake.application.rake_require 'tasks/gitlab/helpers'
-    Rake.application.rake_require 'tasks/gitlab/users'
-
-    # empty task as env is already loaded
-    Rake::Task.define_task :environment
-  end
-
-  def run_rake_task(task_name)
-    Rake::Task[task_name].reenable
-    Rake.application.invoke_task task_name
-  end
-
-  describe 'clear_all_authentication_tokens' do
-    before do
-      # avoid writing task output to spec progress
-      allow($stdout).to receive :write
-    end
-
-    context 'gitlab version' do
-      it 'clears the authentication token for all users' do
-        create_list(:user, 2)
-
-        expect(User.pluck(:authentication_token)).to all(be_present)
-
-        run_rake_task('gitlab:users:clear_all_authentication_tokens')
-
-        expect(User.pluck(:authentication_token)).to all(be_nil)
-      end
-    end
-  end
-end