remove Architecture Center from metadata

otc_metadata/data/documents/ac-blueprints.yaml

@@ -1,9 +0,0 @@
----
-environment: public
-link: /architecture-center/blueprints/
-pdf_name: architecture-center-blueprints
-rst_location: doc/blueprints/source
-service_type: ac
-title: Blueprints
-type: blueprints
-disable_import: true

otc_metadata/data/documents/ac-cloud-adoption-framework.yaml

@@ -1,9 +0,0 @@
----
-environment: internal
-link: /architecture-center/caf/
-pdf_name: architecture-center-cloud-adoption-framework
-rst_location: doc/caf/source
-service_type: ac
-title: Cloud Adoption Framework
-type: caf
-disable_import: true

otc_metadata/data/services/ac.yaml

@@ -1,16 +0,0 @@
----
-environment: hidden
-repositories:
-- environment: internal
-  repo: docs/architecture-center
-  type: gitea
-- environment: public
-  repo: opentelekomcloud-docs/architecture-center
-  type: github
-service_category: other
-service_title: Architecture Center
-service_type: ac
-service_uri: architecture-center
-teams:
-- name: docs-architecture-center-rw
-  permission: write