curl_client: fix IsahcClient post-a943eb96e9

Fixes the IsahcClient to work wiith async_trait from
a943eb9

Author: Fishrock123

src/isahc.rs

@@ -43,35 +43,32 @@ impl Clone for IsahcClient {
 #[async_trait]
 impl HttpClient for IsahcClient {
     async fn send(&self, mut req: Request) -> Result<Response, Error> {
-        let client = self.client.clone();
-        Box::pin(async move {
-            let mut builder = http::Request::builder()
-                .uri(req.url().as_str())
-                .method(http::Method::from_bytes(req.method().to_string().as_bytes()).unwrap());
-
-            for (name, value) in req.iter() {
-                builder = builder.header(name.as_str(), value.as_str());
-            }
-
-            let body = req.take_body();
-
-            let body = match body.len() {
-                Some(len) => isahc::Body::from_reader_sized(body, len as u64),
-                None => isahc::Body::from_reader(body),
-            };
-
-            let request = builder.body(body).unwrap();
-            let res = client.send_async(request).await.map_err(Error::from)?;
-            let (parts, body) = res.into_parts();
-            let len = body.len().map(|len| len as usize);
-            let body = Body::from_reader(BufReader::new(body), len);
-            let mut response = http_types::Response::new(parts.status.as_u16());
-            for (name, value) in &parts.headers {
-                response.insert_header(name.as_str(), value.to_str().unwrap());
-            }
-            response.set_body(body);
-            Ok(response)
-        })
+        let mut builder = http::Request::builder()
+            .uri(req.url().as_str())
+            .method(http::Method::from_bytes(req.method().to_string().as_bytes()).unwrap());
+
+        for (name, value) in req.iter() {
+            builder = builder.header(name.as_str(), value.as_str());
+        }
+
+        let body = req.take_body();
+
+        let body = match body.len() {
+            Some(len) => isahc::Body::from_reader_sized(body, len as u64),
+            None => isahc::Body::from_reader(body),
+        };
+
+        let request = builder.body(body).unwrap();
+        let res = self.client.send_async(request).await.map_err(Error::from)?;
+        let (parts, body) = res.into_parts();
+        let len = body.len().map(|len| len as usize);
+        let body = Body::from_reader(BufReader::new(body), len);
+        let mut response = http_types::Response::new(parts.status.as_u16());
+        for (name, value) in &parts.headers {
+            response.insert_header(name.as_str(), value.to_str().unwrap());
+        }
+        response.set_body(body);
+        Ok(response)
     }
 }