AP_HAL_QURT: replace header guard with pragma once

libraries/AP_HAL_QURT/AP_HAL_QURT.h

@@ -12,9 +12,7 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
-#ifndef __AP_HAL_QURT_H__
-#define __AP_HAL_QURT_H__
+#pragma once
 
 /* Your layer exports should depend on AP_HAL.h ONLY. */
 #include <AP_HAL/AP_HAL.h>
@@ -25,6 +23,3 @@
 #include "AP_HAL_QURT_Main.h"
 
 #endif // CONFIG_HAL_BOARD
-
-#endif //__AP_HAL_QURT_H__
-

libraries/AP_HAL_QURT/AP_HAL_QURT_Main.h

@@ -12,8 +12,4 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
-#ifndef __AP_HAL_QURT_MAIN_H__
-#define __AP_HAL_QURT_MAIN_H__
-
-#endif // __AP_HAL_QURT_MAIN_H__
+#pragma once

libraries/AP_HAL_QURT/AP_HAL_QURT_Private.h

@@ -12,9 +12,7 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
-#ifndef __AP_HAL_QURT_PRIVATE_H__
-#define __AP_HAL_QURT_PRIVATE_H__
+#pragma once
 
 /* Umbrella header for all private headers of the AP_HAL_QURT module.
  * Only import this header from inside AP_HAL_QURT
@@ -23,6 +21,3 @@
 #include "UARTDriver.h"
 #include "UDPDriver.h"
 #include "Util.h"
-
-#endif // __AP_HAL_QURT_PRIVATE_H__
-

libraries/AP_HAL_QURT/HAL_QURT_Class.h

@@ -12,9 +12,7 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
-#ifndef __AP_HAL_QURT_CLASS_H__
-#define __AP_HAL_QURT_CLASS_H__
+#pragma once
 
 #include <AP_HAL/AP_HAL.h>
 
@@ -25,6 +23,3 @@ public:
     HAL_QURT();
     void run(int argc, char* const* argv, Callbacks* callbacks) const override;
 };
-
-#endif // __AP_HAL_QURT_CLASS_H__
-