Auto merge of #13076 - wdv4758h:serviceworker_manager, r=jdm

Remove unnecessary clone from ServiceWorkerManager::prepare_activation

remove unnecessary for `scope_url`

- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #12999
- [X] These changes do not require tests because it should works when it compiles

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/13076)
<!-- Reviewable:end -->

1 files changed, 2 insertions, 2 deletions

diff --git a/components/script/serviceworker_manager.rs b/components/script/serviceworker_manager.rs
index 1c24c6fef3f..09f5288929a 100644
--- a/components/script/serviceworker_manager.rs
+++ b/components/script/serviceworker_manager.rs
@@ -72,7 +72,7 @@ impl ServiceWorkerManager {
             }
         }
 
-        if let Some(ref scope_url) = scope_url {
+        if let Some(scope_url) = scope_url {
             if self.active_workers.contains_key(&scope_url) {
                 // do not run the same worker if already active.
                 warn!("Service worker for {:?} already active", scope_url);
@@ -100,7 +100,7 @@ impl ServiceWorkerManager {
                                                                               self.own_sender.clone(),
                                                                               scope_url.clone());
                 // We store the activated worker
-                self.active_workers.insert(scope_url.clone(), scope_things.clone());
+                self.active_workers.insert(scope_url, scope_things.clone());
                 return Some(sender);
             } else {
                 warn!("Unable to activate service worker");