[website] Closing the survey

#42104

docs/notifications.json

@@ -9,11 +9,6 @@
     "title": "MUI X v6.18.x and the latest improvements before the next major",
     "text": "New stable components, polished features, better performance and more. Check out the details in our <a style=\"color: inherit;\" data-ga-event-category=\"Announcement\" data-ga-event-action=\"notification\" data-ga-event-label=\"mui-x-end-v6\" href=\"https://mui.com/blog/mui-x-end-v6-features/\">recent blog post</a>."
   },
-  {
-    "id": 79,
-    "title": "A new Developer Survey is open",
-    "text": "Take a few minutes to share your feedback and expectations in the <a style=\"color: inherit;\" data-ga-event-category=\"Announcement\" data-ga-event-action=\"notification\" data-ga-event-label=\"mui-survey\" href=\"https://tally.so/r/3Ex4PN?source=docs-notification\">Developer Survey</a>."
-  },
   {
     "id": 81,
     "title": "Introducing MUI X v7",