Writefull to BigQuery new events and clean up (#29191)

GitOrigin-RevId: dc01a585f451513dcb1eb37ce6e5fdf906eb7ef6

services/web/frontend/js/shared/context/types/writefull-instance.ts

@@ -3,8 +3,6 @@ export interface WritefullEvents {
     method: 'email-password' | 'login-with-overleaf'
     isPremium: boolean
   }
-  'writefull-received-suggestions': { numberOfSuggestions: number }
-  'writefull-register-as-auto-account': { email: string }
   'writefull-ai-assist-show-paywall': { origin?: string }
 }