selftests: harness: Don't set setup_completed for fixtureless tests

This field is unused and has no meaning for tests without fixtures.
Don't set it for them.

Signed-off-by: Thomas Weißschuh <[email protected]>
Acked-by: Shuah Khan <[email protected]>
Link: https://lore.kernel.org/r/20250505-nolibc-kselftest-harness-v4-8-ee4dd5257135@linutronix.de
Signed-off-by: Thomas Weißschuh <[email protected]>

Author: t-8ch

tools/testing/selftests/kselftest_harness.h

@@ -178,7 +178,6 @@
 		struct __test_metadata *_metadata, \
 		struct __fixture_variant_metadata __attribute__((unused)) *variant) \
 	{ \
-		_metadata->setup_completed = true; \
 		if (setjmp(_metadata->env) == 0) \
 			test_name(_metadata); \
 		__test_check_assert(_metadata); \