Auto merge of #14066 - rjgoldsborough:remove-extra-clones-14062, r=frewsxcv

remove extra clones from dom event script

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fixes #14062 by removing extra clone calls
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #14062  (github issue number if applicable).

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- [ ] There are tests for these changes OR
- [X] These changes do not require tests because elements are already copies

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components/script/dom/event.rs

@@ -330,8 +330,8 @@ impl Runnable for EventRunnable {
 
     fn handler(self: Box<EventRunnable>) {
         let target = self.target.root();
-        let bubbles = self.bubbles.clone();
-        let cancelable = self.cancelable.clone();
+        let bubbles = self.bubbles;
+        let cancelable = self.cancelable;
         target.fire_event_with_params(self.name, bubbles, cancelable);
     }
 }