scripts: Fix twisterlib for ruff - F811

This fixes ruff linting error F811,
where a module is reimported or otherwise
redefined without being used.

Signed-off-by: Lukasz Mrugala <[email protected]>

Author: LukaszMrugala

.ruff-excludes.toml

@@ -789,7 +789,6 @@
 "./scripts/pylib/twister/twisterlib/harness.py" = [
     "E501",     # https://docs.astral.sh/ruff/rules/line-too-long
     "F541",     # https://docs.astral.sh/ruff/rules/f-string-missing-placeholders
-    "F811",     # https://docs.astral.sh/ruff/rules/redefined-while-unused
     "UP031",    # https://docs.astral.sh/ruff/rules/printf-string-formatting
     "UP032",    # https://docs.astral.sh/ruff/rules/f-string
 ]

scripts/pylib/twister/twisterlib/harness.py

@@ -13,7 +13,6 @@
 import threading
 import time
 import xml.etree.ElementTree as ET
-from asyncio.log import logger
 from collections import OrderedDict
 from enum import Enum