Update feature-availability.md

This feature was removed when the management console was deprecated

Author: tarTech23

articles/security/fundamentals/feature-availability.md

@@ -314,7 +314,6 @@ The following table displays the current Microsoft Defender for IoT feature avai
 | [SYSLOG Server (LEEF format)](../../defender-for-iot/organizations/how-to-forward-alert-information-to-partners.md#syslog-server-actions) | GA | GA |
 | [SYSLOG Server (Object)](../../defender-for-iot/organizations/how-to-forward-alert-information-to-partners.md#syslog-server-actions) | GA | GA |
 | [SYSLOG Server (Text Message)](../../defender-for-iot/organizations/how-to-forward-alert-information-to-partners.md#syslog-server-actions) | GA | GA |
-| [Web callback (Webhook)](../../defender-for-iot/organizations/how-to-forward-alert-information-to-partners.md#webhook-server-action) | GA | GA |
 
 ### For device builders