(Qsystem_char_id): Don't define when HAVE_CHISE is not defined or

(Qsystem_char_id): Don't define when HAVE_CHISE is not defined or
HAVE_LIBCHISE_LIBCHISE is defined.
(char_attribute_system_db_file): Don't define when HAVE_LIBCHISE is
defined.
(Freset_char_attribute_table): Use HAVE_LIBCHISE instead of HAVE_CHISE
to specify using with libchise.
(syms_of_chartab): Don't define symbol `system-char-id' when
HAVE_CHISE is not defined or HAVE_LIBCHISE_LIBCHISE is defined.