Merge branch 'fix/wifi_docs_remove_nonexistent_lwip_opt' into 'master'

fix(wifi): Remove non-existent LWIP option from docs

See merge request espressif/esp-idf!34055

docs/en/api-guides/wifi.rst

@@ -275,7 +275,7 @@ Another thing that deserves attention is that the default behavior of LwIP is to
 - Five seconds later, the Wi-Fi connection is restored because :cpp:func:`esp_wifi_connect()` is called in the application event callback function. **Moreover, the station connects to the same AP and gets the same IPV4 address as before**.
 - Sixty seconds later, when the application sends out data with the keep-alive socket, the socket returns an error and the application closes the socket and re-creates it when necessary.
 
-In above scenarios, ideally, the application sockets and the network layer should not be affected, since the Wi-Fi connection only fails temporarily and recovers very quickly. The application can enable "Keep TCP connections when IP changed" via LwIP menuconfig.
+In above scenarios, ideally, the application sockets and the network layer should not be affected, since the Wi-Fi connection only fails temporarily and recovers very quickly.
 
 IP_EVENT_STA_GOT_IP
 ++++++++++++++++++++++++++++++++++++