feat(ui): remove keepUnusedDataFor for dynamic prompts

This query can have potentially large responses. Keeping them around for 24 hours essentially a hardcoded memory leak. Use the default for RTKQ of 60 seconds.

invokeai/frontend/web/src/services/api/endpoints/utilities.ts

@@ -21,7 +21,6 @@ export const utilitiesApi = api.injectEndpoints({
         body: arg,
         method: 'POST',
       }),
-      keepUnusedDataFor: 86400, // 24 hours
       // We need to fetch this on reconnect bc the user may have changed the text field while
       // disconnected.
       providesTags: ['FetchOnReconnect'],