Merge pull request #189447 from batamig/patch-158

removing horizon from toc

Author: ttorble

articles/defender-for-iot/organizations/TOC.yml

@@ -218,8 +218,6 @@
   items:
   - name: Work with Defender for IoT APIs
     href: references-work-with-defender-for-iot-apis.md
-  - name: Horizon API
-    href: references-horizon-api.md
   - name: Work with Defender for IoT CLI commands
     href: references-work-with-defender-for-iot-cli-commands.md
   - name: Manage proprietary protocols (Horizon)
@@ -252,4 +250,4 @@
     - name: Azure security documentation 
       href: ../../security/index.yml
     - name: Azure IoT Security, Privacy, & Compliance blog
-      href: https://techcommunity.microsoft.com/t5/iot-security/bd-p/IoTSecurity
+      href: https://techcommunity.microsoft.com/t5/iot-security/bd-p/IoTSecurity