update puppeteer to use setContent with wait and housekeeping the declaration files

index.d.ts

@@ -4,26 +4,3 @@ declare namespace mitt {
     (all?: { [key: string]: Array<Handler> }): Emitter;
   }
 }
-
-declare module 'delegated-events' {
-  type EventHandler = (event: Event) => any;
-
-  type EventListenerOptions = {
-    capture?: boolean;
-    document?: Document;
-  };
-
-  export function on(
-    name: string,
-    selector: string,
-    handler: EventHandler,
-    options?: EventListenerOptions,
-  ): void;
-  export function off(
-    name: string,
-    selector: string,
-    handler: EventHandler,
-    options?: EventListenerOptions,
-  ): void;
-  export function fire(target: EventTarget, name: string, detail?: any): void;
-}