ptrace: remove PT_DTRACE from arch/h8300

h8300 defines PT_DTRACE for asm but never uses it.

DEFINE(PT_PTRACED, PT_PTRACED) seems to be unused too.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Acked-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>