Remove reference from expression and patterns

Clippy emits:

  warning: you don't need to add `&` to both the expression and the
  patterns

Remove reference from expression and patterns

Author: tcharding

src/descriptor/key.rs

@@ -657,14 +657,14 @@ impl<K: InnerXKey> DescriptorXKey<K> {
     ) -> Option<bip32::DerivationPath> {
         let (fingerprint, path) = keysource;
 
-        let (compare_fingerprint, compare_path) = match &self.origin {
-            &Some((fingerprint, ref path)) => (
+        let (compare_fingerprint, compare_path) = match self.origin {
+            Some((fingerprint, ref path)) => (
                 fingerprint,
                 path.into_iter()
                     .chain(self.derivation_path.into_iter())
                     .collect(),
             ),
-            &None => (
+            None => (
                 self.xkey.xkey_fingerprint(secp),
                 self.derivation_path.into_iter().collect::<Vec<_>>(),
             ),

src/psbt/finalizer.rs

@@ -201,9 +201,9 @@ fn get_descriptor(psbt: &Psbt, index: usize) -> Result<Descriptor<PublicKey>, In
             Err(InputError::MissingWitnessScript)
         }
     } else if script_pubkey.is_p2sh() {
-        match &inp.redeem_script {
-            &None => Err(InputError::MissingRedeemScript),
-            &Some(ref redeem_script) => {
+        match inp.redeem_script {
+            None => Err(InputError::MissingRedeemScript),
+            Some(ref redeem_script) => {
                 if redeem_script.to_p2sh() != *script_pubkey {
                     return Err(InputError::InvalidRedeemScript {
                         redeem: redeem_script.clone(),