Fix more clippy warnings

src/wasm/request.rs

@@ -6,7 +6,6 @@ use http::{request::Parts, Method, Request as HttpRequest};
 use serde::Serialize;
 #[cfg(feature = "json")]
 use serde_json;
-use serde_urlencoded;
 use url::Url;
 use web_sys::RequestCredentials;
 
@@ -96,7 +95,7 @@ impl Request {
     /// None is returned if a body is which can not be cloned.
     pub fn try_clone(&self) -> Option<Request> {
         let body = match self.body.as_ref() {
-            Some(ref body) => Some(body.try_clone()?),
+            Some(body) => Some(body.try_clone()?),
             None => None,
         };
 
@@ -106,7 +105,7 @@ impl Request {
             headers: self.headers.clone(),
             body,
             cors: self.cors,
-            credentials: self.credentials.clone(),
+            credentials: self.credentials,
         })
     }
 }