fix: remove superfluous service-worker code

public/src/service-worker.js

@@ -27,65 +27,3 @@ self.addEventListener('fetch', function (event) {
 		return response;
 	}));
 });
-
-/**
- * The following code is used by nodebb-plugin-web-push
- * There is a very strong argument to be made that this is plugin-specific
- * code and does not belong in core.
- *
- * Additional R&D is required to determine how to allow plugins to inject
- * code into the service worker.
- */
-
-// Register event listener for the 'push' event.
-self.addEventListener('push', function (event) {
-	// Keep the service worker alive until the notification is created.
-	const { title, body, tag, data } = event.data.json();
-
-	if (title && body) {
-		const icon = data.icon;
-		delete data.icon;
-		const badge = data.badge;
-		delete data.badge;
-
-		event.waitUntil(
-			self.registration.showNotification(title, { body, tag, data, icon, badge })
-		);
-	} else if (tag) {
-		event.waitUntil(
-			self.registration.getNotifications({ tag }).then((notifications) => {
-				notifications.forEach((notification) => {
-					notification.close();
-				});
-			})
-		);
-	}
-});
-
-self.addEventListener('notificationclick', (event) => {
-	event.notification.close();
-	let target;
-	if (event.notification.data && event.notification.data.url) {
-		target = new URL(event.notification.data.url);
-	}
-
-	// This looks to see if the current is already open and focuses if it is
-	event.waitUntil(
-		self.clients
-			.matchAll({ type: 'window' })
-			.then((clientList) => {
-				// eslint-disable-next-line no-restricted-syntax
-				for (const client of clientList) {
-					const { hostname } = new URL(client.url);
-					if (target && hostname === target.hostname && 'focus' in client) {
-						client.postMessage({
-							action: 'ajaxify',
-							url: target.pathname,
-						});
-						return client.focus();
-					}
-				}
-				if (self.clients.openWindow) return self.clients.openWindow(target.pathname);
-			})
-	);
-});