Fix explicit lifetime clippy lints

Fix the clippy lints for the use of an explicit lifetime.

Author: jamillambert

bitcoin/src/psbt/mod.rs

@@ -753,7 +753,7 @@ impl<'de> serde::Deserialize<'de> for Psbt {
     {
         struct Visitor;
 
-        impl<'de> serde::de::Visitor<'de> for Visitor {
+        impl serde::de::Visitor<'_> for Visitor {
             type Value = Psbt;
 
             fn expecting(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {

consensus_encoding/src/encode/encoders.rs

@@ -277,7 +277,7 @@ mod tests {
 
     struct TestBytes<'a>(&'a [u8], bool);
 
-    impl<'a> Encodable for TestBytes<'a> {
+    impl Encodable for TestBytes<'_> {
         type Encoder<'s>
             = BytesEncoder<'s>
         where

primitives/src/transaction.rs

@@ -431,7 +431,7 @@ impl<'e> WitnessesEncoder<'e> {
 }
 
 #[cfg(feature = "alloc")]
-impl<'e> Encoder for WitnessesEncoder<'e> {
+impl Encoder for WitnessesEncoder<'_> {
     #[inline]
     fn current_chunk(&self) -> Option<&[u8]> {
         // `advance` sets `cur_enc` to `None` once the slice encoder is completely exhausted.
@@ -628,7 +628,7 @@ impl<'de> Deserialize<'de> for OutPoint {
         if deserializer.is_human_readable() {
             struct StringVisitor;
 
-            impl<'de> de::Visitor<'de> for StringVisitor {
+            impl de::Visitor<'_> for StringVisitor {
                 type Value = OutPoint;
 
                 fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {

primitives/src/witness.rs

@@ -279,7 +279,7 @@ impl Encodable for Witness {
     }
 }
 
-impl<'a> Encoder for WitnessEncoder<'a> {
+impl Encoder for WitnessEncoder<'_> {
     #[inline]
     fn current_chunk(&self) -> Option<&[u8]> { self.0.current_chunk() }