uORB Devices NuttX: Fix Build under GCC 4.9.x

Remove "algorithm.h" from included files; similar bug and solution as seen in #3022

src/modules/uORB/uORBDevices_nuttx.cpp

@@ -36,7 +36,6 @@
 #include <fcntl.h>
 #include <errno.h>
 #include <nuttx/arch.h>
-#include <algorithm>
 #include "uORBDevices_nuttx.hpp"
 #include "uORBUtils.hpp"
 #include "uORBManager.hpp"
@@ -684,4 +683,3 @@ uORB::DeviceNode *uORB::DeviceMaster::GetDeviceNode(const char *nodepath)
 
 	return rc;
 }
-