Get rid of kernel_c++_structs mechanism.

This undoes fc7864091e.

It was only ever used by the FreeBSD compatibility layer,
only supported one structure, and created problems with
concurrent builds.

headers/private/kernel/kernel_c++_structs.h

@@ -1,24 +0,0 @@
-/*
- * Copyright 2009, Ingo Weinhold, [email protected].
- * Distributed under the terms of the MIT License.
- */
-#ifndef _KERNEL_KERNEL_CPP_STRUCTS_H
-#define _KERNEL_KERNEL_CPP_STRUCTS_H
-
-
-#include <util/kernel_c.h>
-
-#include <kernel_c++_struct_sizes.h>
-	// this is the generated defining macros for the structure sizes
-
-
-// in C++ mode include the headers defining the structures
-#ifdef __cplusplus
-#	include <condition_variable.h>
-#endif
-
-// in C mode define the structures
-DEFINE_KERNEL_CPP_STRUCT(ConditionVariable)
-
-
-#endif	// _KERNEL_KERNEL_CPP_STRUCTS_H

headers/private/kernel/util/kernel_c.h

@@ -1,31 +0,0 @@
-/*
- * Copyright 2009, Ingo Weinhold, [email protected].
- * Distributed under the terms of the MIT License.
- */
-#ifndef _KERNEL_UTIL_KERNEL_C_H
-#define _KERNEL_UTIL_KERNEL_C_H
-
-
-/*!	Defines a structure that has the size of a certain C++ structure.
-	\param name The name of the C++ structure.
-	\param flatName The name of the structure to be defined.
-*/
-#define DEFINE_FLAT_KERNEL_CPP_STRUCT(name, flatName)	\
-	struct flatName {									\
-		char	bytes[_KERNEL_CPP_STRUCT_SIZE_##name];	\
-	};
-
-
-/*!	In C mode DEFINE_KERNEL_CPP_STRUCT() defines a struct \a name with the
-	size of the C++ structure of the same name. In C++ it is a no-op.
-*/
-#ifdef __cplusplus
-#	define DEFINE_KERNEL_CPP_STRUCT(name)
-#else
-#	define DEFINE_KERNEL_CPP_STRUCT(name)			\
-		DEFINE_FLAT_KERNEL_CPP_STRUCT(name, name)	\
-		typedef struct name name;
-#endif
-
-
-#endif	/* _KERNEL_UTIL_KERNEL_C_H */