Fix FileNotFound exception in mtk reset

[9cb14c1ec0]

If logs don't exist for some reason, we don't need to trip up when deleting them, which prevents proper device shutdown.

[bkerler]

I don't think that a try except block is a good solution to that.
I'd recommend to do this instead :

if os.path.exists(os.path.join("logs", "hwparam.json")):
    os.remove(os.path.join("logs", "hwparam.json"))

[9cb14c1ec0]

Ok, I changed it.

[bkerler]

Thx, merged :)