GitLab

 xdisp.c (string_pos_nchars_ahead, c_string_pos)
 (face_before_or_after_it_pos, next_element_from_string)
 (next_element_from_c_string, produce_stretch_glyph): Remove unused
 calculations of maximum string length before calling
 string_char_and_length and STRING_CHAR_AND_LENGTH.
 (string_char_and_length): Update commentary: MAXLEN is no longer
 needed.