main: Remove SOCKS5 proxy support

Simplify application by removing SOCKS5 proxy code
since it is not being used on Nitrogen.

Signed-off-by: Zbigniew Bodek <zbigniew.bodek@huawei.com>

src/config.h

@@ -25,11 +25,6 @@
 #endif
 #endif
 
-#if defined(CONFIG_SOCKS)
-#define SOCKS5_PROXY_ADDR	SERVER_ADDR
-#define SOCKS5_PROXY_PORT	1080
-#endif
-
 #ifdef CONFIG_MQTT_LIB_TLS
 #define SERVER_PORT		8883
 #else

src/main.c

@@ -38,10 +38,6 @@ static APP_BMEM struct mqtt_client client_ctx;
 /* MQTT Broker details. */
 static APP_BMEM struct sockaddr_storage broker;
 
-#if defined(CONFIG_SOCKS)
-static APP_BMEM struct sockaddr socks5_proxy;
-#endif
-
 static APP_BMEM struct zsock_pollfd fds[1];
 static APP_BMEM int nfds;
 
@@ -331,27 +327,12 @@ static void broker_init(void)
 	broker6->sin6_family = AF_INET6;
 	broker6->sin6_port = htons(SERVER_PORT);
 	zsock_inet_pton(AF_INET6, SERVER_ADDR, &broker6->sin6_addr);
-
-#if defined(CONFIG_SOCKS)
-	struct sockaddr_in6 *proxy6 = (struct sockaddr_in6 *)&socks5_proxy;
-
-	proxy6->sin6_family = AF_INET6;
-	proxy6->sin6_port = htons(SOCKS5_PROXY_PORT);
-	zsock_inet_pton(AF_INET6, SOCKS5_PROXY_ADDR, &proxy6->sin6_addr);
-#endif
 #else
 	struct sockaddr_in *broker4 = (struct sockaddr_in *)&broker;
 
 	broker4->sin_family = AF_INET;
 	broker4->sin_port = htons(SERVER_PORT);
 	zsock_inet_pton(AF_INET, SERVER_ADDR, &broker4->sin_addr);
-#if defined(CONFIG_SOCKS)
-	struct sockaddr_in *proxy4 = (struct sockaddr_in *)&socks5_proxy;
-
-	proxy4->sin_family = AF_INET;
-	proxy4->sin_port = htons(SOCKS5_PROXY_PORT);
-	zsock_inet_pton(AF_INET, SOCKS5_PROXY_ADDR, &proxy4->sin_addr);
-#endif
 #endif
 }
 
@@ -394,13 +375,6 @@ static void client_init(struct mqtt_client *client)
 #else
 	client->transport.type = MQTT_TRANSPORT_NON_SECURE;
 #endif
-
-#if defined(CONFIG_SOCKS)
-	mqtt_client_set_proxy(client, &socks5_proxy,
-			      socks5_proxy.sa_family == AF_INET ?
-			      sizeof(struct sockaddr_in) :
-			      sizeof(struct sockaddr_in6));
-#endif
 }
 
 /* In this routine we block until the connected variable is 1 */