fixup! sock: Introduction of new application layer API

Fix some typedefs

sys/include/net/sock.h

@@ -167,7 +167,7 @@ typedef struct {
 /**
  * @brief   Common IP-based transport layer end point
  */
-typedef struct _sock_tl_ep {
+struct _sock_tl_ep {
     sock_ip_ep_t ip;        /**< IP end point */
     uint16_t port;          /**< transport layer port */
 };

sys/include/net/sock/ip.h

@@ -39,26 +39,6 @@
 extern "C" {
 #endif
 
-/**
- * @brief   An end point for a raw IPv4/IPv6 sock object
- */
-typedef struct {
-    uint16_t family;        /**< family of sock_ip_ep_t::addr as defined in @ref net_af */
-
-    /**
-     * @brief   stack-specific network interface ID
-     *
-     * @todo    port to common network interface identifiers in PR #5511.
-     *
-     * Use @ref SOCK_ADDR_ANY_NETIF for any interface.
-     * For reception this is the local interface the message came over,
-     * for transmission, this is the local interface the message should be send
-     * over
-     */
-    uint16_t netif;
-    sock_addr_ip_t addr;    /**< IP address */
-} sock_ip_ep_t;
-
 /**
  * @brief   Implementation-specific type of a raw IPv4/IPv6 sock object
  *