MV-10296 Remove incorrect exclusion to retry policy (#1157)

* As of MV-6709, we will still retry non-2xx responses, even for large response sizes.

site/docs/messaging/webhooks.mdx

@@ -21,7 +21,6 @@ Bandwidth uses HTTP Callbacks webhooks to send events to any publicly addressabl
   * All Message callbacks are sent as a list/array `[ {message metadata} ]` to the webhook url in the application.
   * You **MUST** Reply with a `HTTP 2xx` status code for _every_ callback/delivery receipt.  Bandwidth will retry _every_ callback over the next 24 hours until a `HTTP 2xx` code is received for the callback.  After 24 hours, Bandwidth will no longer try to send the callback.
   * Bandwidth's Messaging platform has a 10 second timeout for callbacks. This means your server must respond to the callback request within 10 seconds, otherwise the platform will try again at a later time.
-  * Your server should return a response smaller than 16kB. If the reponse is larger, Bandwidth will not retry the callback.
   * Because we guarantee "at least once delivery" of events, it is possible (but not common) to receive duplicate message events. Your server should be able to handle duplicates.
 
 ## Inbound Message Webhooks