removed unused and wrong ft_modf

srcs/ft_modf.c

@@ -1,25 +0,0 @@
-#include "libft.h"
-
-#include <stdio.h> // tmp for printf, for float debug
-
-/**
- * Splits a double into its integer and fractional parts,
- * it returns the fractional part,
- * and stores the integer part in the in_part param (if not null)
- * e.g.:
- *  -3.7 → -3.0 and -0.7 (returns -0.7)
- */
-double ft_modf(double x, double *store_int_part)
-{
-	// extract the integer part by casting to long long
-	long long integer = (long long)x;
-	if (store_int_part != NULL)
-	{
-		*store_int_part = (double)integer;
-	}
-
-	// compute the fractional part
-	double frac_part = x - integer;
-
-	return frac_part;
-}