headers/build: Replace StackOrHeapArray with a reference to the main one.

The files were identical. No functional change.

headers/build/os/support/StackOrHeapArray.h

@@ -1,43 +1 @@
-/*
- * Copyright 2012, Jonathan Schleifer <js@webkeks.org>. All Rights Reserved.
- * Distributed under the terms of the MIT License.
- */
-#ifndef	_SUPPORT_STACKORHEAPARRAY_H
-#define	_SUPPORT_STACKORHEAPARRAY_H
-
-#include <cstddef>
-#include <new>
-
-template <typename Type, int StackSize>
-class BStackOrHeapArray {
-public:
-	BStackOrHeapArray(size_t count)
-	{
-		if (count > StackSize)
-			fData = new(std::nothrow) Type[count];
-		else
-			fData = fStackData;
-	}
-
-	~BStackOrHeapArray()
-	{
-		if (fData != fStackData)
-			delete[] fData;
-	}
-
-	bool IsValid() const
-	{
-		return fData != NULL;
-	}
-
-	operator Type*()
-	{
-		return fData;
-	}
-
-private:
-	Type	fStackData[StackSize];
-	Type*	fData;
-};
-
-#endif
+#include <../os/support/StackOrHeapArray.h>