fix incorrect merge

mysql-test/mysql-test-run.pl

@@ -614,11 +614,7 @@ sub main {
     else
     {
       my $sys_info= My::SysInfo->new();
-      $opt_parallel= $sys_info->num_cpus() +
-        int($sys_info->min_bogomips()/500) - 4;
-      for my $limit (2000, 1500, 1000, 500){
-        $opt_parallel-- if ($sys_info->min_bogomips() < $limit);
-      }
+      $opt_parallel= $sys_info->num_cpus()+int($sys_info->min_bogomips()/500)-4;
     }
     my $max_par= $ENV{MTR_MAX_PARALLEL} || 8;
     $opt_parallel= $max_par if ($opt_parallel > $max_par);