enabling DLI for public

otc_metadata/data/services.yaml

@@ -373,8 +373,7 @@ documents:
     service_type: dis
     title: User Guide
     type: umn
-  - environment: internal
-    hc_location: api/dli
+  - hc_location: api/dli
     html_location: docs/dli/api-ref
     link: /data-lake-insight/api-ref/
     pdf_name: dli-api-ref
@@ -382,8 +381,7 @@ documents:
     service_type: dli
     title: API Reference
     type: api-ref
-  - environment: internal
-    hc_location: usermanual/dli
+  - hc_location: usermanual/dli
     html_location: docs/dli/umn
     link: /data-lake-insight/umn/
     pdf_name: dli-umn