fix: simplify driveItemSelect description

Author: dschmidt

api/openapi-spec/v1.0.yaml

@@ -5987,10 +5987,7 @@ components:
     driveItemSelect:
       name: $select
       in: query
-      description: |
-        Select properties to be returned. By default all properties are returned, except for
-        instance annotations (prefixed with `@`) that are computationally expensive or
-        short-lived. Instance annotations must be explicitly requested via `$select`.
+      description: Select additional properties to be returned.
       style: form
       explode: false
       schema: