execve: Remove unnecessary #ifndef _GNU_SOURCE

Signed-off-by: Petr Vorel <[email protected]>

Author: pevik

testcases/kernel/syscalls/execve/execve02.c

@@ -14,9 +14,8 @@
  * errno should be EACCES.
  */
 
-#ifndef _GNU_SOURCE
 #define _GNU_SOURCE
-#endif
+
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <errno.h>

testcases/kernel/syscalls/execve/execve03.c

@@ -35,9 +35,8 @@
  *		permissions - fails with ENOEXEC.
  */
 
-#ifndef _GNU_SOURCE
 #define _GNU_SOURCE
-#endif
+
 #include <sys/types.h>
 #include <sys/mman.h>
 #include <sys/stat.h>

testcases/kernel/syscalls/execve/execve04.c

@@ -13,9 +13,8 @@
  * writing fails with ETXTBSY.
  */
 
-#ifndef _GNU_SOURCE
 #define _GNU_SOURCE
-#endif
+
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <errno.h>