Fix for the previous commit. I've added includes to the wrong file :(

server-tools/instance-manager/manager.cc:
  Unnecessary incudes removed
server-tools/instance-manager/mysqlmanager.cc:
  Added missing includes

server-tools/instance-manager/manager.cc

@@ -18,8 +18,6 @@
 
 #include <my_global.h>
 #include <signal.h>
-#include <sys/stat.h>
-#include <sys/types.h>
 
 #include "thread_repository.h"
 #include "listener.h"

server-tools/instance-manager/mysqlmanager.cc

@@ -19,6 +19,8 @@
 #include <string.h>
 #include <signal.h>
 #include <sys/wait.h>
+#include <sys/stat.h>
+#include <sys/types.h>
 
 #include "manager.h"
 #include "options.h"