chore(util): resolve duplicate import

Author: tottoto

http-body-util/src/collected.rs

@@ -94,7 +94,7 @@ impl<B> Unpin for Collected<B> {}
 
 #[cfg(test)]
 mod tests {
-    use std::convert::{Infallible, TryInto};
+    use std::convert::TryInto;
 
     use futures_util::stream;
 

http-body-util/src/combinators/with_trailers.rs

@@ -123,7 +123,7 @@ mod tests {
     use std::convert::Infallible;
 
     use bytes::Bytes;
-    use http::{HeaderMap, HeaderName, HeaderValue};
+    use http::{HeaderName, HeaderValue};
 
     use crate::{BodyExt, Empty, Full};