selftests: harness: Remove inline qualifier for wrappers

The pointers to the wrappers are stored in function pointers,
preventing them from actually being inlined.
Remove the inline qualifier, aligning these wrappers with the other
functions defined through macros.

Signed-off-by: Thomas Weißschuh <[email protected]>
Reviewed-by: Muhammad Usama Anjum <[email protected]>
Acked-by: Shuah Khan <[email protected]>
Link: https://lore.kernel.org/r/20250505-nolibc-kselftest-harness-v4-5-ee4dd5257135@linutronix.de
Signed-off-by: Thomas Weißschuh <[email protected]>

Author: t-8ch

tools/testing/selftests/kselftest_harness.h

@@ -172,7 +172,7 @@
 
 #define __TEST_IMPL(test_name, _signal) \
 	static void test_name(struct __test_metadata *_metadata); \
-	static inline void wrapper_##test_name( \
+	static void wrapper_##test_name( \
 		struct __test_metadata *_metadata, \
 		struct __fixture_variant_metadata __attribute__((unused)) *variant) \
 	{ \
@@ -401,7 +401,7 @@
 		struct __test_metadata *_metadata, \
 		FIXTURE_DATA(fixture_name) *self, \
 		const FIXTURE_VARIANT(fixture_name) *variant); \
-	static inline void wrapper_##fixture_name##_##test_name( \
+	static void wrapper_##fixture_name##_##test_name( \
 		struct __test_metadata *_metadata, \
 		struct __fixture_variant_metadata *variant) \
 	{ \