delete old empty docs (#544)

docs/v1.X/docs/user_guide/configurations_management/local-configurations.md

@@ -1,4 +0,0 @@
-# Managing local configurations
-
-<!--TBD: where we explain how non-upstream configurations are managed-->
-

docs/v1.X/mkdocs.yml

@@ -15,7 +15,6 @@ nav:
       - Parsers: user_guide/configurations_management/parsers.md
       - Enrichers: user_guide/configurations_management/enrichers.md
       - Scenarios: user_guide/configurations_management/scenarios.md
-      - Managing local/custom configuration: user_guide/configurations_management/local-configurations.md
     - Decisions Management: user_guide/decision_management.md
     - Bouncers & machines management: user_guide/bouncer_machine_management.md
     - Databases: user_guide/database.md
@@ -73,8 +72,5 @@ nav:
     - Parsers: write_configurations/parsers.md
     - Scenarios: write_configurations/scenarios.md
     - Whitelists: write_configurations/whitelist.md
-  - Admin Guide:
-    - Services Configuration: admin_guide/services_configuration.md
-    - Architecture: admin_guide/architecture.md
   - Upgrade V0.X to V1.X: migration.md