Update documentations

docs/configuration/inbound/dns.md

@@ -1,44 +0,0 @@
-`dns` inbound is a DNS server.
-
-### Structure
-
-```json
-{
-  "inbounds": [
-    {
-      "type": "dns",
-      "tag": "dns-in",
-      
-      "listen": "::",
-      "listen_port": 5353,
-      "network": "udp"
-    }
-  ]
-}
-```
-
-!!! note ""
-    
-    There are no outbound connections by the DNS inbound, all requests are handled internally.
-
-### Listen Fields
-
-#### listen
-
-==Required==
-
-Listen address.
-
-#### listen_port
-
-==Required==
-
-Listen port.
-
-### DNS Fields
-
-#### network
-
-Listen network, one of `tcp` `udp`.
-
-Both if empty.

docs/configuration/inbound/index.md

@@ -23,7 +23,6 @@
 | `tun`         | [Tun](./tun)                 |
 | `redirect`    | [Redirect](./redirect)       |
 | `tproxy`      | [TProxy](./tproxy)           |
-| `dns`         | [DNS](./dns)                 |
 
 #### tag
 

docs/configuration/inbound/tun.md

@@ -15,7 +15,6 @@
       "inet6_address": "fdfe:dcba:9876::1/128",
       "mtu": 1500,
       "auto_route": true,
-      "hijack_dns": true,
       
       "sniff": true,
       "sniff_override_destination": false,
@@ -49,10 +48,6 @@ Set the default route to the Tun.
 
     To avoid traffic loopback, set `route.auto_detect_interface` or `route.default_interface` or `outbound.bind_interface`
 
-#### hijack_dns
-
-Hijack TCP/UDP DNS requests to the built-in DNS adapter.
-
 ### Listen Fields
 
 #### sniff