Remove route which became obsolete because of the replaced user autocompleter

app/controllers/groups_controller.rb

@@ -31,7 +31,7 @@ class GroupsController < ApplicationController
   layout 'admin'
 
   before_action :require_admin
-  before_action :find_group, only: [:destroy, :autocomplete_for_user,
+  before_action :find_group, only: [:destroy,
                                     :show, :create_memberships, :destroy_membership,
                                     :edit_membership]
 
@@ -136,11 +136,6 @@ class GroupsController < ApplicationController
     redirect_to controller: '/groups', action: 'edit', id: @group, tab: 'users'
   end
 
-  def autocomplete_for_user
-    @users = User.active.not_in_group(@group).like(params[:q]).limit(100)
-    render layout: false
-  end
-
   def create_memberships
     membership_params = permitted_params.group_membership
     membership_id = membership_params[:membership_id]

config/routes.rb

@@ -357,7 +357,6 @@ OpenProject::Application.routes.draw do
 
     resources :groups do
       member do
-        get :autocomplete_for_user
         # this should be put into it's own resource
         match '/members' => 'groups#add_users', via: :post, as: 'members_of'
         match '/members/:user_id' => 'groups#remove_user', via: :delete, as: 'member_of'

spec/routing/groups_spec.rb

@@ -68,12 +68,6 @@ describe 'groups routes', type: :routing do
                                                         id: '4')
   }
 
-  it {
-    is_expected.to route(:get, '/admin/groups/4/autocomplete_for_user').to(controller: 'groups',
-                                                                           action: 'autocomplete_for_user',
-                                                                           id: '4')
-  }
-
   it {
     is_expected.to route(:post, '/admin/groups/4/members').to(controller: 'groups',
                                                               action: 'add_users',

spec_legacy/functional/groups_controller_spec.rb

@@ -110,13 +110,4 @@ describe GroupsController, type: :controller do
       delete :destroy_membership, params: { id: 10, membership_id: 6 }
     end
   end
-
-  it 'should autocomplete for user' do
-    get :autocomplete_for_user, params: { id: 10, q: 'mis' }
-    assert_response :success
-    users = assigns(:users)
-    refute_nil users
-    assert users.any?
-    assert !users.include?(Group.find(10).users.first)
-  end
 end