fix(http_client source): remove utf8 lossy conversion (vectordotdev#17655)

Fixes: vectordotdev#16814

This change is a now a no-op thanks to
vectordotdev#17628 and
vectordotdev#17688.

Author: dsmith3197

src/sources/http_client/client.rs

@@ -309,8 +309,7 @@ impl http_client::HttpClientContext for HttpClientContext {
     fn on_response(&mut self, _url: &Uri, _header: &Parts, body: &Bytes) -> Option<Vec<Event>> {
         // get the body into a byte array
         let mut buf = BytesMut::new();
-        let body = String::from_utf8_lossy(body);
-        buf.extend_from_slice(body.as_bytes());
+        buf.extend_from_slice(body);
 
         let events = self.decode_events(&mut buf);