[PATCH v3 56/68] selftests/sched: Drop define _GNU_SOURCE

_GNU_SOURCE is provided by lib.mk, so it should be dropped to prevent
redefinition warnings.

Fixes: 809216233555 ("selftests/harness: remove use of LINE_MAX")
Signed-off-by: Edward Liaw <redacted>
---
 tools/testing/selftests/sched/cs_prctl_test.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/tools/testing/selftests/sched/cs_prctl_test.c b/tools/testing/selftests/sched/cs_prctl_test.c
index 62fba7356af2..abf907f243b6 100644
--- a/tools/testing/selftests/sched/cs_prctl_test.c
+++ b/tools/testing/selftests/sched/cs_prctl_test.c

@@ -18,8 +18,6 @@
  * You should have received a copy of the GNU Lesser General Public License
  * along with this library; if not, see <http://www.gnu.org/licenses>.
  */
-
-#define _GNU_SOURCE
 #include <sys/eventfd.h>
 #include <sys/wait.h>
 #include <sys/types.h>

-- 
2.45.0.118.g7fe29c98d7-goog