canvas: DIRECTX_VERSION macro is obsolete

It was only checked by our own code, and only DirectX 9 is supported.

Change-Id: I03035f87969301624df011cb4d76c6a9532f3c99

canvas/Library_directx9canvas.mk

@@ -25,7 +25,6 @@ $(eval $(call gb_Library_use_sdk_api,directx9canvas))
 
 # clear NOMINMAX because GdiplusTypes.h uses those macros :(
 $(eval $(call gb_Library_add_defs,directx9canvas,\
-	-DDIRECTX_VERSION=0x0900 \
 	-UNOMINMAX \
 ))
 

canvas/Library_gdipluscanvas.mk

@@ -27,7 +27,6 @@ $(eval $(call gb_Library_use_sdk_api,gdipluscanvas))
 
 # clear NOMINMAX because GdiplusTypes.h uses those macros :(
 $(eval $(call gb_Library_add_defs,gdipluscanvas,\
-	-DDIRECTX_VERSION=0x0900 \
 	-UNOMINMAX \
 ))
 

canvas/StaticLibrary_directxcanvas.mk

@@ -19,7 +19,6 @@ $(eval $(call gb_StaticLibrary_use_api,directxcanvas,\
 
 # clear NOMINMAX because GdiplusTypes.h uses those macros :(
 $(eval $(call gb_StaticLibrary_add_defs,directxcanvas,\
-	-DDIRECTX_VERSION=0x0900 \
 	-UNOMINMAX \
 ))
 

canvas/source/directx/dx_9rm.cxx

@@ -18,8 +18,6 @@
  */
 
 
-#if DIRECTX_VERSION == 0x0900
-
 #define MAX_TEXTURE_SIZE (2048)
 #define MIN_TEXTURE_SIZE (32)
 //#define FAKE_MAX_NUMBER_TEXTURES (2)
@@ -1342,6 +1340,4 @@ namespace dxcanvas
     }
 }
 
-#endif
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

canvas/source/directx/dx_winstuff.hxx

@@ -38,10 +38,6 @@
 # define D3D_DEBUG_INFO
 #endif
 
-#ifndef DIRECTX_VERSION
-#error please define for which directx version we should compile
-#endif
-
 #if defined _MSC_VER
 #pragma warning(push,1)
 #endif