fix the problem that trigger order is mixed up

fix the problem that trigger order is mixed up

PROBLEM:
  display 'succuss' on dashboard
  but actually the image was not created

REASON:
  the trigger infomation order was mixed up
  between 'pre-release-image-creator' and 'BUILD-MONIOTR' job

SOLUTION:
  1. change the code from 'break' to 'return'
     bcz the rest progress does not need anymore
  2. remove DUMMY code

Change-Id: I898f57a74b97bb6b5f9e11f134c751f4dad9186f
Signed-off-by: SungHun Hwang <sh0924.hwang@samsung.com>