test: fix pylint errors in u_boot_utils.py
authorHeinrich Schuchardt <heinrich.schuchardt@canonical.com>
Mon, 22 Nov 2021 23:01:47 +0000 (00:01 +0100)
committerHeinrich Schuchardt <heinrich.schuchardt@canonical.com>
Fri, 26 Nov 2021 21:02:37 +0000 (22:02 +0100)
commit9aa1a14d13831cbddbdab8d28cd6005bf663bcea
tree2ce4a0073f03fa64a55fd4a5dfcc5b013b48996a
parent67e9b64701601eefc87f995f706b4cc7c0543312
test: fix pylint errors in u_boot_utils.py

* there is no os.path.unlink() method
* don't inherit from object
* add module docstring
* move imports to the top
* avoid unused variable

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
test/py/u_boot_utils.py