selftests/timens: Remove duplicated include <time.h>

Remove duplicated include.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

tools/testing/selftests/timens/exec.c

@@ -11,7 +11,6 @@
 #include <sys/wait.h>
 #include <time.h>
 #include <unistd.h>
-#include <time.h>
 #include <string.h>
 
 #include "log.h"

tools/testing/selftests/timens/procfs.c

@@ -12,7 +12,6 @@
 #include <sys/types.h>
 #include <time.h>
 #include <unistd.h>
-#include <time.h>
 
 #include "log.h"
 #include "timens.h"

tools/testing/selftests/timens/timens.c

@@ -10,7 +10,6 @@
 #include <sys/types.h>
 #include <time.h>
 #include <unistd.h>
-#include <time.h>
 #include <string.h>
 
 #include "log.h"

tools/testing/selftests/timens/timer.c

@@ -11,7 +11,6 @@
 #include <stdio.h>
 #include <stdint.h>
 #include <signal.h>
-#include <time.h>
 
 #include "log.h"
 #include "timens.h"