Python's os.rename() will silently replace an existing file,
so there's no need for the extra check and removal.

Reference: https://docs.python.org/3/library/os.html#os.rename



Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190613130718.3763-3-crosa@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>