Merge pull request #134 from michaelwu/remove-unsafe-block

Remove unnecessary unsafe block; r=Ms2ger

Author: Ms2ger

dom_sink/src/owned_dom.rs

@@ -322,9 +322,7 @@ impl ParseResult for OwnedDom {
         for node in sink.nodes.into_iter() {
             let ptr: *const UnsafeCell<SquishyNode> = &*node;
             if live.contains(&(ptr as usize)) {
-                unsafe {
-                    mem::forget(node);
-                }
+                mem::forget(node);
             }
         }