Remove log line

plate-tool-lib/src/util.rs

@@ -1,7 +1,6 @@
 pub fn letters_to_num(letters: &str) -> Option<u8> {
     let mut num: u8 = 0;
     for (i, letter) in letters.to_ascii_uppercase().chars().rev().enumerate() {
-        log::debug!("{}, {}", i, letter);
         let n = letter as u8;
         if !(65..=90).contains(&n) {
             return None;