Remove accidental add to wrong section

Author: jerelmiller

docs/source/development-testing/static-typing.mdx

@@ -552,8 +552,6 @@ Variables are validated the same as `useQuery`. See [working with variables](#wo
 
 Learn more about integrating TypeScript with data masking in the [data masking docs](../data/fragments#using-with-typescript).
 
-For a more comprehensive guide on using mutations, see the [Subscriptions guide](../data/subscriptions).
-
 ## Advanced GraphQL Codegen configuration
 
 ### Generating relative types files