remove unnecessary clone()

src/camera.rs

@@ -361,7 +361,7 @@ pub fn find_closest_target<TargetSpecifier>(
             let distance = trans.translation.distance(camera_transform.translation);
             if distance < closest_distance {
                 closest_distance = distance;
-                closest_entity = Some(entity.clone());
+                closest_entity = Some(entity);
             }
         }
     }