chore(core): cancel block not found alert (#8310)

packages/frontend/i18n/src/resources/en.json

@@ -26,8 +26,6 @@
   "Back Home": "Back home",
   "Back to Quick Search": "Back to quick search",
   "Back to all": "Back to all",
-  "Block not found": "Block not found",
-  "Block not found description": "The block you are trying to access does not exist or has been removed.",
   "Body text": "Body text",
   "Bold": "Bold",
   "Cancel": "Cancel",