* Remove legacy cucul_ansi_to_str() from cucul.h.

cucul/cucul.h

@@ -107,7 +107,6 @@ unsigned long int cucul_get_attr(cucul_canvas_t *, int, int);
 int cucul_set_attr(cucul_canvas_t *, unsigned long int);
 int cucul_set_color_ansi(cucul_canvas_t *, unsigned char, unsigned char);
 int cucul_set_color_argb(cucul_canvas_t *, unsigned int, unsigned int);
-char const *cucul_ansi_to_str(unsigned char);
 int cucul_putchar(cucul_canvas_t *, int, int, unsigned long int);
 unsigned long int cucul_getchar(cucul_canvas_t *, int, int);
 int cucul_putstr(cucul_canvas_t *, int, int, char const *);