fix: remove explicit .into_iter conversion

Author: shrirambalaji

src/bootstrap/src/core/config/config.rs

@@ -2098,9 +2098,8 @@ impl Config {
 
         // std_features chosen during bootstrap
         if let Some(std_features) = std_features {
-            config.rust_std_features = Some(BTreeSet::from_iter(std_features.into_iter()));
+            config.rust_std_features = Some(BTreeSet::from_iter(std_features));
         }
-
         let default = debug == Some(true);
         config.rust_debug_assertions = debug_assertions.unwrap_or(default);
         config.rust_debug_assertions_std =