Minor code cleanup

DirectXTex/BC.h

@@ -13,9 +13,7 @@
 // http://go.microsoft.com/fwlink/?LinkId=248926
 //-------------------------------------------------------------------------------------
 
-#if defined(_MSC_VER) && (_MSC_VER > 1000)
 #pragma once
-#endif
 
 #include <assert.h>
 #include <directxmath.h>

DirectXTex/DDS.h

@@ -18,9 +18,7 @@
 // http://go.microsoft.com/fwlink/?LinkId=248926
 //--------------------------------------------------------------------------------------
 
-#if defined(_MSC_VER) && (_MSC_VER > 1000)
 #pragma once
-#endif
 
 #if defined(_XBOX_ONE) && defined(_TITLE)
 #include <d3d11_x.h>

DirectXTex/Filters.h

@@ -11,9 +11,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 //-------------------------------------------------------------------------------------
 
-#if defined(_MSC_VER) && (_MSC_VER > 1000)
 #pragma once
-#endif
 
 #include <directxmath.h>
 #include <directxpackedvector.h>

DirectXTex/scoped.h

@@ -11,9 +11,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 //-------------------------------------------------------------------------------------
 
-#if defined(_MSC_VER) && (_MSC_VER > 1000)
 #pragma once
-#endif
 
 #include <assert.h>
 #include <memory>