nebraska: Fix a problem when deleting runtime-root

Due to some wrong indentation, we're deleting the runtime-root directory
before attempting to delete its content and we get weird errors like
this:

WARNING:root:Failed to remove file /tmp/nebraska/port with error [Errno 2] No such file or directory: '/tmp/nebraska/port'
WARNING:root:Failed to remove directory /tmp/nebraska with error [Errno 2] No such file or directory: '/tmp/nebraska'

This CL just deletes the runtime-root directory after deleting its
content.

BUG=None
TEST=starting and stopping nebraska with custom runtime root didn't get
warning anymore.

Change-Id: I345217610bd1dc540c4f9c88f8e4b1e1fb2cacaa
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2005352
Tested-by: Amin Hassani <ahassani@chromium.org>
Commit-Queue: Amin Hassani <ahassani@chromium.org>
Auto-Submit: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Andrew Lassalle <andrewlassalle@chromium.org>
Reviewed-by: Jae Hoon Kim <kimjae@chromium.org>
1 file changed