Revert "commitMessage is provided in the job from the EXTRA_VARIABLES_YAML"

This reverts commit 1b3d36741adcd5eedbfe7d3f4d24010e1073a50b.

Reason for revert: breaks CI tests logic

Change-Id: I6269588c4716315636c9f610679b8cfa401ec29c
1 file changed