Remove Windows GDI specializations for deleteOwnedPtr

Source/wtf/OwnPtrCommon.h

Index: Source/wtf/OwnPtrCommon.h
diff --git a/Source/wtf/OwnPtrCommon.h b/Source/wtf/OwnPtrCommon.h
index 6aada1f80a0e087531aa6db185f29d6f9d68fb8d..ee5c065b8cc17084f33745ffbf216198f43c122d 100644
--- a/Source/wtf/OwnPtrCommon.h
+++ b/Source/wtf/OwnPtrCommon.h
@@ -28,16 +28,6 @@
 #ifndef WTF_OwnPtrCommon_h
 #define WTF_OwnPtrCommon_h
 
-#if OS(WINDOWS)
-typedef struct HBITMAP__* HBITMAP;
-typedef struct HBRUSH__* HBRUSH;
-typedef struct HDC__* HDC;
-typedef struct HFONT__* HFONT;
-typedef struct HPALETTE__* HPALETTE;
-typedef struct HPEN__* HPEN;
-typedef struct HRGN__* HRGN;
-#endif
-
 namespace WTF {
 
     template <typename T> inline void deleteOwnedPtr(T* ptr)
@@ -47,16 +37,6 @@ namespace WTF {
             delete ptr;
     }
 
-#if OS(WINDOWS)
-    void deleteOwnedPtr(HBITMAP);
-    void deleteOwnedPtr(HBRUSH);
-    void deleteOwnedPtr(HDC);
-    void deleteOwnedPtr(HFONT);
-    void deleteOwnedPtr(HPALETTE);
-    void deleteOwnedPtr(HPEN);
-    void deleteOwnedPtr(HRGN);
-#endif
-
 } // namespace WTF
 
 #endif // WTF_OwnPtrCommon_h