Docs: update labels for auth provider pages (#72294)

update labels for auth provider pages

docs/sources/setup-grafana/configure-security/configure-authentication/grafana-com/index.md

@@ -5,8 +5,6 @@ description: Grafana Com Authentication
 labels:
   products:
     - cloud
-    - enterprise
-    - oss
 menuTitle: Grafana Com OAuth2
 title: Configure Grafana Com authentication
 weight: 1200

docs/sources/setup-grafana/configure-security/configure-authentication/grafana/index.md

@@ -4,7 +4,6 @@ aliases:
 description: Grafana OAuthentication Guide
 labels:
   products:
-    - cloud
     - enterprise
     - oss
 menuTitle: Basic auth

docs/sources/setup-grafana/configure-security/configure-authentication/saml-ui/index.md

@@ -4,7 +4,6 @@ labels:
   products:
     - cloud
     - enterprise
-    - oss
 menuTitle: SAML user interface
 title: Configure SAML authentication using the Grafana user interface
 weight: 600