kunit: tool: remove unused imports and variables

We don't run a linter regularly over kunit.py code (the default settings
on most don't like kernel style, e.g. tabs) so some of these imports
didn't get removed when they stopped being used.

Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

tools/testing/kunit/kunit.py

@@ -123,7 +123,7 @@ def _suites_from_test_list(tests: List[str]) -> List[str]:
 		parts = t.split('.', maxsplit=2)
 		if len(parts) != 2:
 			raise ValueError(f'internal KUnit error, test name should be of the form "<suite>.<test>", got "{t}"')
-		suite, case = parts
+		suite, _ = parts
 		if not suites or suites[-1] != suite:
 			suites.append(suite)
 	return suites

tools/testing/kunit/kunit_config.py

@@ -8,7 +8,7 @@
 
 from dataclasses import dataclass
 import re
-from typing import Dict, Iterable, List, Set, Tuple
+from typing import Dict, Iterable, List, Tuple
 
 CONFIG_IS_NOT_SET_PATTERN = r'^# CONFIG_(\w+) is not set$'
 CONFIG_PATTERN = r'^CONFIG_(\w+)=(\S+|".*")$'

tools/testing/kunit/kunit_kernel.py

@@ -18,7 +18,6 @@
 from typing import Iterator, List, Optional, Tuple
 
 import kunit_config
-from kunit_printer import stdout
 import qemu_config
 
 KCONFIG_PATH = '.config'

tools/testing/kunit/kunit_parser.py

@@ -12,7 +12,6 @@
 from __future__ import annotations
 from dataclasses import dataclass
 import re
-import sys
 import textwrap
 
 from enum import Enum, auto

tools/testing/kunit/kunit_tool_test.py

@@ -328,7 +328,7 @@ def test_ktap_format(self):
 	def test_parse_subtest_header(self):
 		ktap_log = test_data_path('test_parse_subtest_header.log')
 		with open(ktap_log) as file:
-			result = kunit_parser.parse_run_tests(file.readlines())
+			kunit_parser.parse_run_tests(file.readlines())
 		self.print_mock.assert_any_call(StrContains('suite (1 subtest)'))
 
 	def test_show_test_output_on_failure(self):