Remove extraneous test

This test essentially just replicates the test above

Author: jonodrew

spec/features/admin/add_user_to_workshop_spec.rb

@@ -40,8 +40,4 @@
 
     expect(params[:member_pick][:members]).to eq([romeo.id.to_s])
   end
-  #
-  # scenario 'An admin adds multiple members to a workshop' do
-  #   assert false
-  # end
 end