Revert "[Fuel-plugin] Install kernel in post-deployment."

Revert "[Fuel-plugin] Install kernel in post-deployment."

This reverts commit a10a10b373f17dc423800e6bb8d1a8e99450090d.

According to Fuel team, this patch will be included into C-2 release
instead of C-1 release, so we have to revert it to the C stable branch.

To revert from C stable branch requires cherry-picking from master
branch, so here it is.

Change-Id: I32e1148e5c1cd24e5696270f1aa328630ef42dd0
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
(cherry picked from commit 8647dbbe9db84d71610f42cec6ff619783d99800)