refactor(retry): apply review feedback

#3216 (comment)

Co-Authored-By: Oliver Gould <[email protected]>
Signed-off-by: katelyn martin <[email protected]>

linkerd/http/retry/src/lib.rs

@@ -268,13 +268,11 @@ async fn send_req_with_retries(
         tracing::trace!("Success on first attempt");
         return result.map(|rsp| rsp.map(BoxBody::new));
     }
-    match backup.body().is_capped() {
-        // The body completely fit into the retry buffer, so we can retry.
-        Some(false) => {}
+    if matches!(backup.body().is_capped(), None | Some(true)) {
         // The body was either too large, or we received an early response
         // before the request body was completed read. We cannot safely
         // attempt to send this request again.
-        None | Some(true) => return result.map(|rsp| rsp.map(BoxBody::new)),
+        return result.map(|rsp| rsp.map(BoxBody::new));
     }
 
     // The response was retryable, so continue trying to dispatch backup
@@ -305,9 +303,8 @@ async fn send_req_with_retries(
             tracing::debug!("Retry success");
             return result.map(|rsp| rsp.map(BoxBody::new));
         }
-        match backup.body().is_capped() {
-            Some(false) => {}
-            None | Some(true) => return result.map(|rsp| rsp.map(BoxBody::new)),
+        if matches!(backup.body().is_capped(), None | Some(true)) {
+            return result.map(|rsp| rsp.map(BoxBody::new));
         }
     }