*: young clippy back at it again

src/card.rs

@@ -78,11 +78,11 @@ impl Card {
     }
 
     pub fn rank(&self) -> Option<Rank> {
-        self.playing_card().and_then(|pc| Some(pc.rank))
+        self.playing_card().map(|pc| pc.rank)
     }
 
     pub fn suit(&self) -> Option<Suit> {
-        self.playing_card().and_then(|pc| Some(pc.suit))
+        self.playing_card().map(|pc| pc.suit)
     }
 }
 
@@ -226,7 +226,7 @@ mod traits_numerics {
 
     impl From<PlayingCard> for i64 {
         fn from(card: PlayingCard) -> i64 {
-            let deck = card.deck as i64;
+            let deck = card.deck;
             let rank = card.rank as i64;
             let suit = card.suit as i64;
             (deck * 52) + (rank * 4) + suit

src/classifier.rs

@@ -93,8 +93,7 @@ fn try_poker_hand(num_jokers: usize, cards: &[Card]) -> Option<PokerType> {
     let (highest_rank_freq, num_pairs) = {
         let mut highest_rank_freq = 0;
         let mut num_pairs = 0;
-        for i in 0..counter_ranks.len() {
-            let rank_freq = counter_ranks[i];
+        for rank_freq in counter_ranks {
             highest_rank_freq = std::cmp::max(rank_freq, highest_rank_freq);
             if rank_freq == 2 {
                 num_pairs += 1

src/main.rs

@@ -29,7 +29,7 @@ fn main() {
     }
     println!();
 
-    let hand = classify(&hand);
+    let hand = classify(hand);
     match hand {
         Some(hand) => println!("{}", hand),
         None => println!("Not a hand"),