scripts: Remove unnecessary () around if/while conditions in Python

Not needed in Python. Detected by check C0325 in pylint3.

Also replace an

  if len(tag):

with just

  if tag:

Empty strings, byte strings, lists, etc., are falsy in Python.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
12 files changed