Revert "More timesync tries after snapshot is reverted"

Failed to build ISO with this commit:
http://jenkins-product.srt.mirantis.net:8080/view/6.0/job/6.0.iso/71/console

This reverts commit 12f7e144ada6221907d3a50ce048720c5d367035.

Change-Id: I1bcc6540de79d7683e144c46c3b8dcc47359364e
Merge "Revert "More timesync tries after snapshot is reverted""