Replace all include guard ifdefs with "#pragma once"

Source/Core/InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.h

@@ -2,8 +2,7 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
 
-#ifndef _FORCEFEEDBACKDEVICE_H_
-#define _FORCEFEEDBACKDEVICE_H_
+#pragma once
 
 #include "../Device.h"
 
@@ -65,5 +64,3 @@ private:
 
 }
 }
-
-#endif

Source/Core/InputCommon/ControllerInterface/ForceFeedback/OSX/DirectInputAdapter.h

@@ -10,8 +10,7 @@
  * for these differences on OS X.
  */
 
-#ifndef _DIRECTINPUTADAPTER_H_
-#define _DIRECTINPUTADAPTER_H_
+#pragma once
 
 typedef LONG* LPLONG; // Missing type for ForceFeedback.h
 #include <CoreFoundation/CoreFoundation.h>
@@ -217,8 +216,5 @@ public:
 	}
 };
 
-
 }
 }
-
-#endif

Source/Core/InputCommon/ControllerInterface/ForceFeedback/OSX/DirectInputConstants.h

@@ -2,8 +2,7 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
 
-#ifndef _DIRECTINPUTCONSTANTS_H_
-#define _DIRECTINPUTCONSTANTS_H_
+#pragma once
 
 /* 
  * Define all constants from ForceFeedbackConstants.h with DirectInput prefixes.
@@ -146,5 +145,3 @@
 #define DIGFFS_USERFFSWITCHON           FFGFFS_USERFFSWITCHON
 #define DIGFFS_USERFFSWITCHOFF          FFGFFS_USERFFSWITCHOFF
 #define DIGFFS_DEVICELOST               FFGFFS_DEVICELOST
-
-#endif