events: remove unused catch bindings

PR-URL: #24079
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Wyatt Preul <wpreul@gmail.com>

Author: cjihrig

lib/events.js

@@ -160,7 +160,7 @@ EventEmitter.prototype.emit = function emit(type, ...args) {
           value: enhanceStackTrace.bind(null, er, capture),
           configurable: true
         });
-      } catch (e) {}
+      } catch {}
 
       // Note: The comments on the `throw` lines are intentional, they show
       // up in Node's output if this results in an unhandled exception.