Remove warning, exe_mysql_fix_system_tables are not available on windows

mysql-test/mysql-test-run.pl

@@ -1801,14 +1801,16 @@ sub environment_setup () {
   # ----------------------------------------------------
   # Setup env so childs can execute mysql_fix_system_tables
   # ----------------------------------------------------
+  if ( ! $glob_win32 )
+  {
     my $cmdline_mysql_fix_system_tables=
       "$exe_mysql_fix_system_tables --no-defaults --host=localhost " .
       "--user=root --password= " .
       "--basedir=$glob_basedir --bindir=$path_client_bindir --verbose " .
       "--port=$master->[0]->{'port'} " .
       "--socket=$master->[0]->{'path_sock'}";
-
     $ENV{'MYSQL_FIX_SYSTEM_TABLES'}=  $cmdline_mysql_fix_system_tables;
+  }
 
   # ----------------------------------------------------
   # Setup env so childs can execute my_print_defaults