[ruby/reline] Remove unused method (https://github.com/ruby/reline/pull/557)
get_mbchar_byte_size_by_first_char isn't used in Reline. Also, this method implements the same functionality as String#bytesize and is unnecessary.
get_mbchar_byte_size_by_first_char
String#bytesize
[ruby/reline] Remove unused method
(https://github.com/ruby/reline/pull/557)
get_mbchar_byte_size_by_first_char
isn't used in Reline.Also, this method implements the same functionality as
String#bytesize
and is unnecessary.