Apply suggestions from clippy

quinn-h3/src/qpack/parse_error.rs

@@ -10,16 +10,12 @@ pub enum ParseError {
 
 impl From<prefix_int::Error> for ParseError {
     fn from(e: prefix_int::Error) -> Self {
-        match e {
-            e => ParseError::InvalidInteger(e),
-        }
+        ParseError::InvalidInteger(e)
     }
 }
 
 impl From<prefix_string::Error> for ParseError {
     fn from(e: prefix_string::Error) -> Self {
-        match e {
-            e => ParseError::InvalidString(e),
-        }
+        ParseError::InvalidString(e)
     }
 }

quinn-proto/src/crypto/ring.rs

@@ -283,7 +283,6 @@ mod test {
         MAX_CID_SIZE,
     };
     use hex_literal::hex;
-    use rand;
 
     #[test]
     fn handshake_crypto_roundtrip() {

quinn/src/udp.rs

@@ -5,7 +5,6 @@ use std::{
 };
 
 use futures::ready;
-use mio;
 
 use tokio::io::PollEvented;
 

quinn/tests/many_connections.rs

@@ -76,11 +76,7 @@ fn connect_n_nodes_to_1_and_send_1mb_data() {
                 match e {
                     WriteError::ConnectionClosed(ApplicationClosed { .. })
                     | WriteError::ConnectionClosed(Reset) => {}
-                    WriteError::ConnectionClosed(e) => match e {
-                        _ => {
-                            shared.lock().unwrap().errors.push(e);
-                        }
-                    },
+                    WriteError::ConnectionClosed(e) => shared.lock().unwrap().errors.push(e),
                     _ => panic!("unexpected write error"),
                 }
             });