remove deadline

Author: saihaj

pages/en/release-notes/graphql-validations-migration-guide.mdx

@@ -37,7 +37,7 @@ npx @graphql-validate/cli -s https://api-next.thegraph.com/subgraphs/name/$GITHU
 **Notes:**
 
 - Set or replace $GITHUB_USER, $SUBGRAPH_SLUG with the appropriate values. Like: [`artblocks/art-blocks`](https://api.thegraph.com/subgraphs/name/artblocks/art-blocks)
-- The provided preview schema URL (`https://api-next.thegraph.com/`) is heavily rated limited and will sunset on [deadline date]. **Do not use it in production.**
+- The preview schema URL (https://api-next.thegraph.com/) provided is heavily rate-limited and will be sunset once all users have migrated to the new version. **Do not use it in production.**
 - Operations are identified in files with the following extensions `[.graphql,](https://www.graphql-tools.com/docs/schema-loading#graphql-file-loader)[.ts, .tsx, .js, jsx](https://www.graphql-tools.com/docs/schema-loading#code-file-loader)` (`-o` option).
 
 ### CLI output