remove obsolete comment

Author: parthea

gapic/templates/_pypi_packages.j2

@@ -4,7 +4,6 @@ Where the first <tuple> contains the API, including the version and the second
 tuple contains the PyPI package name, the minimum allowed version and the maximum
 allowed version.
 
-Note: Set the minimum version for google-cloud-documentai to 2.0.0 which has support for `barcode` in `google.cloud.documentai.types`
 -->
 {% set pypi_packages = {
     ("google", "apps", "card", "v1"): {"package_name": "google-apps-card", "lower_bound": "0.3.0", "upper_bound": "1.0.0"},