chore: remove postponed event

Author: wackerow

src/data/community-events.json

@@ -665,15 +665,6 @@
     "description": "Two-day conference and hackathon focused on sharing knowledge and sparking innovative ideas aimed at energizing the entire ethereum ecosystem.",
     "imageUrl": "https://framerusercontent.com/assets/IBAFZwu44FpNo95n3OoOapeFUyw.png"
   },
-  {
-    "title": "Invisible Garden",
-    "startDate": "2025-04-21",
-    "endDate": "2025-05-31",
-    "href": "https://invisible.garden",
-    "location": "San Jose, Costa Rica",
-    "description": "",
-    "imageUrl": ""
-  },
   {
     "title": "Code Africa Conference",
     "startDate": "2025-05-19",