Refactor UAT helpers inclusion in specs

spec/integration/api/application_spec.rb

@@ -1,6 +1,4 @@
 describe 'API application' do
-  include AcceptanceHelpers
-
   describe 'ping endpoint' do
     before { get api_ping_path, format: :json }
 

spec/integration/api/cross_origin_request_spec.rb

@@ -1,6 +1,4 @@
 describe 'API cross origin request' do
-  include AcceptanceHelpers
-
   let(:user)    { api_sign_in }
   let(:origin)  { 'http://origin.example/' }
 

spec/integration/api/playlists_spec.rb

@@ -1,6 +1,4 @@
 describe 'API playlists' do
-  include AcceptanceHelpers
-
   before { api_sign_in }
 
   it 'lists playlists' do

spec/integration/api/sign_in_spec.rb

@@ -1,6 +1,4 @@
 describe 'API sign in' do
-  include AcceptanceHelpers
-
   let(:user) { create :user }
 
   def do_create

spec/integration/api/tracks_spec.rb

@@ -1,6 +1,4 @@
 describe 'API tracks' do
-  include AcceptanceHelpers
-
   let(:track)       { create :track_with_sound }
   let(:other_track) { create :track }