Remove dead error handling code.

components/script/dom/abstractworker.rs

@@ -4,7 +4,6 @@
 
 use dom::bindings::refcounted::Trusted;
 use dom::bindings::reflector::Reflectable;
-use dom::bindings::str::DOMString;
 use dom::bindings::structuredclone::StructuredCloneData;
 use js::jsapi::{JSRuntime, JS_RequestInterruptCallback};
 use js::rust::Runtime;
@@ -30,27 +29,6 @@ impl<T: Reflectable> SimpleWorkerErrorHandler<T> {
     }
 }
 
-pub struct WorkerErrorHandler<T: Reflectable> {
-    pub addr: Trusted<T>,
-    pub msg: DOMString,
-    pub file_name: DOMString,
-    pub line_num: u32,
-    pub col_num: u32,
-}
-
-impl<T: Reflectable> WorkerErrorHandler<T> {
-    pub fn new(addr: Trusted<T>, msg: DOMString, file_name: DOMString, line_num: u32, col_num: u32)
-            -> WorkerErrorHandler<T> {
-        WorkerErrorHandler {
-            addr: addr,
-            msg: msg,
-            file_name: file_name,
-            line_num: line_num,
-            col_num: col_num,
-        }
-    }
-}
-
 #[derive(Copy, Clone)]
 pub struct SharedRt {
     pub rt: *mut JSRuntime