docs: remove enterprise-only note for support chat configuration

Author: DarkPhoenix2704

content/self-hosting/environment-variables.mdx

@@ -139,8 +139,6 @@ has the required permissions. To disable it, set the `NC_DISABLE_PG_DATA_REFLECT
 
 ## Support Chat
 
-> Applicable only for self-hosted enterprise edition.
-
 | Variable | Mandatory | Description | If Not Set |
 |----------|-----------|-------------|------------|
 | `NC_DISABLE_SUPPORT_CHAT` | No | Disables the support chat within the product. We use Chatwoot which is an open source support system. | FALSE |