Remove Windows GDI specializations for deleteOwnedPtr

Source/wtf/OwnPtrCommon.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile, Inc.
  * Copyright (C) 2010 Company 100 Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 10 matching lines @@
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #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)
     {
         typedef char known[sizeof(T) ? 1 : -1];
         if (sizeof(known))
             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