(CHARSET_ID_OFFSET): Deleted.

(CHARSET_ID_OFFSET): Deleted.
(LEADING_BYTE_*): Use `MIN_LEADING_BYTE + n' instead of
`CHARSET_ID_OFFSET - n' for private CCS.
(LEADING_BYTE_CHINESE_BIG5_CDP): Deleted.
(MIN_LEADING_BYTE_PRIVATE): Use `(MIN_LEADING_BYTE + 97)' instead of
`MIN_LEADING_BYTE'.
(MAX_LEADING_BYTE_PRIVATE): Use `-1' instead of `(CHARSET_ID_OFFSET -
97)'.
(MIN_CHAR_BIG5_CDP): Deleted.
(MAX_CHAR_BIG5_CDP): Deleted.