Calls: remove duplicate answer from TURN FAQ and clarify STUN pricing (#20363)

Author: renandincer

src/content/docs/calls/turn/faq.mdx

@@ -13,6 +13,8 @@ Cloudflare TURN pricing is based on the data sent from the Cloudflare edge to th
 
 Pricing for Cloudflare Calls TURN service is $0.05 per GB of data used.
 
+Cloudflare's STUN service at `stun.cloudflare.com` is free and unlimited.
+
 There is a free tier of 1,000 GB before any charges start. Cloudflare Calls billing appears as a single line item on your Cloudflare bill, covering both SFU and TURN.
 
 Traffic between Cloudflare Calls TURN and Cloudflare Calls SFU or Cloudflare Stream (WHIP/WHEP) does not incur any charges.
@@ -132,12 +134,6 @@ Cloudflare Calls denies CreatePermission or ChannelBind requests if private IP r
 
 If you are a Cloudflare BYOIP customer and wish to connect to your BYOIP ranges with Calls TURN, please reach out to your account manager for further details.
 
-### When I send packets to relayed address without using TURN, the packets don't arrive
-
-Cloudflare Calls denies CreatePermission or ChannelBind requests if private IP ranges (e.g loopback addresses, linklocal unicast or multicast blocks) or IP addresses that are part of [BYOIP](/byoip/) are used.
-
-If you are a Cloudflare BYOIP customer and wish to connect to your BYOIP ranges with Calls TURN, please reach out to your account manager for further details.
-
 ### What will happen if TURN credentials expire while the TURN allocation is in use?
 
 Cloudflare Calls will immediately stop billing and recording usage for analytics. After a short delay, the connection will be disconnected.