Remove long obsolete RPC routines

Remove long obsolete RPC routines

* kern/compat_xxx_defs.h: Remove file.
* Makefrag.am (libkernel_a_SOURCES): Remove `kern/compat_xxx_defs.h'.

* include/mach/mach_types.defs (xxx_emulation_vector_t): Remove type.

* device/device.srv: Do not simport <kern/compat_xxx_defs.h>.
* kern/mach.srv: Likewise.
* kern/mach_host.srv: Likewise.

* include/device/device.defs [MACH_KERNEL]: Do not simport
<kern/compat_xxx_defs.h>.
(xxx_device_set_status, xxx_device_get_status)
(xxx_device_set_filter): Replace routine declarations with skip
directives.
* include/mach/mach.defs [MACH_KERNEL]: Do not simport
<kern/compat_xxx_defs.h>.
(xxx_memory_object_lock_request, xxx_task_get_emulation_vector)
(xxx_task_set_emulation_vector, xxx_host_info, xxx_slot_info)
(xxx_cpu_control, xxx_task_info, xxx_thread_get_state)
(xxx_thread_set_state, xxx_thread_info): Replace routine declarations
with skip directive.
* include/mach/mach_host.defs [MACH_KERNEL]: Do not simport
<kern/compat_xxx_defs.h>.
(yyy_host_info, yyy_processor_info, yyy_processor_control)
(xxx_processor_set_default_priv, yyy_processor_set_info): Replace
routine declarations with skip directive.

* kern/ipc_host.c (xxx_processor_set_default_priv): Remove function.
* kern/machine.c (xxx_host_info, xxx_slot_info)
(xxx_cpu_control): Likewise.
* kern/syscall_emulation.c (xxx_task_set_emulation_vector)
(xxx_task_get_emulation_vector): Likewise.
* vm/memory_object.c (xxx_memory_object_lock_request): Likewise.