selftests: mqueue: drop duplicate min definition

Drop duplicate macro min() definition in mq_perf_tests.c, use MIN() in
sys/param.h instead.

Signed-off-by: Geliang Tang <[e-mail]>
Signed-off-by: Shuah Khan <[e-mail]>

tools/testing/selftests/mqueue/mq_perf_tests.c

···
 #include <sys/time.h>
 #include <sys/resource.h>
 #include <sys/stat.h>
+#include <sys/param.h>
 #include <mqueue.h>
 #include <popt.h>
 #include <error.h>
···
 char *MAX_MSGS = "/proc/sys/fs/mqueue/msg_max";
 char *MAX_MSGSIZE = "/proc/sys/fs/mqueue/msgsize_max";
 
-#define min(a, b) ((a) < (b) ? (a) : (b))
 #define MAX_CPUS 64
 char *cpu_option_string;
 int cpus_to_pin[MAX_CPUS];
···
 			"require root in order to modify\nsystem settings.  "
 			"Exiting.\n");
 
-	cpus_online = min(MAX_CPUS, sysconf(_SC_NPROCESSORS_ONLN));
+	cpus_online = MIN(MAX_CPUS, sysconf(_SC_NPROCESSORS_ONLN));
 	cpu_set = CPU_ALLOC(cpus_online);
 	if (cpu_set == NULL) {
 		perror("CPU_ALLOC()");