(destroy_byte_from_character_table): New macro.

(destroy_byte_from_character_table): New macro.
(latin_jisx0201_to_ucs): Deleted.
(latin_iso8859_2_to_ucs): Deleted.
(latin_iso8859_3_to_ucs): Deleted.
(latin_iso8859_4_to_ucs): Deleted.
(latin_iso8859_9_to_ucs): Deleted.
(latin_viscii_lower_to_ucs): Deleted.
(latin_viscii_upper_to_ucs): Deleted.
(mark_charset): Mark `cs->decoding_table'.
(Fcharset_mapping_table): Fix DOC-string.
(Fset_charset_mapping_table): New function.
(syms_of_mule_charset): Add nwe function `set-charset-mapping-table'.
(complex_vars_of_mule_charset): Don't setup and use `latin_*_to_ucs'.