Remove support for MSVC

sky/engine/wtf/Alignment.h

 /*
  *  Copyright (C) 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 12 matching lines @@
 
 #include <algorithm>
 #include <stdint.h>
 
 
 namespace WTF {
 
 #if COMPILER(GCC)
     #define WTF_ALIGN_OF(type) __alignof__(type)
     #define WTF_ALIGNED(variable_type, variable, n) variable_type variable __attribute__((__aligned__(n)))
-#elif COMPILER(MSVC)
-    #define WTF_ALIGN_OF(type) __alignof(type)
-    #define WTF_ALIGNED(variable_type, variable, n) __declspec(align(n)) variable_type variable
 #else
     #error WTF_ALIGN macros need alignment control.
 #endif
 
 #if COMPILER(GCC)
     typedef char __attribute__((__may_alias__)) AlignedBufferChar;
 #else
     typedef char AlignedBufferChar;
 #endif
 
@@ skipping 14 matching lines @@
     }
 
     template <uintptr_t mask>
     inline bool isAlignedTo(const void* pointer)
     {
         return !(reinterpret_cast<uintptr_t>(pointer) & mask);
     }
 }
 
 #endif // WTF_Alignment_h