Remove now-unused dependencies

Author: bugaevc

src/rust/phone_encoder/Cargo.toml

@@ -4,9 +4,3 @@ version = "0.1.0"
 edition = "2018"
 authors = ["Renato Athaydes <[email protected]>"]
 license = ""
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-num-bigint = "0.4"
-lazy_static = "1.4.0"

src/rust/phone_encoder/src/main.rs

@@ -5,16 +5,8 @@ use std::io::{self, BufRead};
 use std::path::Path;
 use std::fmt::{self, Display, Formatter};
 
-use lazy_static::lazy_static;
-use num_bigint::{BigUint, ToBigUint};
-
 type Dictionary = HashMap<Vec<u8>, Vec<String>>;
 
-lazy_static! {
-    static ref ONE: BigUint = 1.to_biguint().unwrap();
-    static ref TEN: BigUint =10.to_biguint().unwrap();
-}
-
 #[derive(Debug, Copy, Clone)]
 enum WordOrDigit<'a> {
     Word(&'a str),
@@ -135,11 +127,6 @@ fn word_to_number(word: &str) -> Vec<u8> {
         .collect()
 }
 
-fn nth_digit(digits: &[u8], i: usize) -> BigUint {
-    let ch = digits.get(i).expect("index out of bounds");
-    ((*ch as usize) - ('0' as usize)).to_biguint().unwrap()
-}
-
 fn char_to_digit(ch: char) -> u8 {
     match ch.to_ascii_lowercase() {
         'e' => 0,