chore(docs): remove note since we have now tested this with transformUnderscore

Author: sutt0n

README.md

@@ -215,8 +215,6 @@ type: `NamingConventionMap` default: `{ enumValues: "change-case-all#pascalCase"
 
 Uses the full path of the enum type as the default value instead of the stringified value.
 
-Note: This option has not been tested with `namingConvention.transformUnderscore` and `namingConvention.typeNames` options and may not work as expected.
-
 Related: https://the-guild.dev/graphql/codegen/docs/config-reference/naming-convention#namingconvention
 
 ### `directives`