AC_Sprayer: clean headers

libraries/AC_Sprayer/AC_Sprayer.cpp

@@ -1,6 +1,10 @@
-#include <AP_HAL/AP_HAL.h>
 #include "AC_Sprayer.h"
 
+#include <AP_AHRS/AP_AHRS.h>
+#include <AP_HAL/AP_HAL.h>
+#include <AP_Math/AP_Math.h>
+#include <SRV_Channel/SRV_Channel.h>
+
 extern const AP_HAL::HAL& hal;
 
 // ------------------------------

libraries/AC_Sprayer/AC_Sprayer.h

@@ -17,9 +17,6 @@
 #include <inttypes.h>
 #include <AP_Common/AP_Common.h>
 #include <AP_Param/AP_Param.h>
-#include <AP_Math/AP_Math.h>
-#include <SRV_Channel/SRV_Channel.h>
-#include <AP_AHRS/AP_AHRS.h>
 
 #define AC_SPRAYER_DEFAULT_PUMP_RATE        10.0f   ///< default quantity of spray per meter travelled
 #define AC_SPRAYER_DEFAULT_PUMP_MIN         0       ///< default minimum pump speed expressed as a percentage from 0 to 100