removes make worker

.travis.yml

@@ -4,6 +4,5 @@ services:
   - docker
 before_script:
   - make docker
-  - make worker
 script:
   - make tests-ci

features/step_definitions/users_steps.rb

@@ -39,6 +39,7 @@ Given("I click on Reset Password link in the reset password email for user {stri
   fill_in 'user_email', with: email
   click_button 'Send me reset password instruction'
   Delayed::Worker.new.work_off
+  sleep 1
   open_email(email)
   current_email.click_link 'Change my password'
 end