Revert test_udp_dtls_handshake() & remove setting of timeout

Author: betzw

TESTS/netsocket/socket_sigio/main.cpp

@@ -69,7 +69,6 @@ void get_data(TCPSocket* sock){
     int ret;
     while((ret = sock->recv(buffer+len, sizeof(buffer) - 1 - len)) > 0) {
       len += ret;
-      sock->set_timeout(0);
     }
     if(len >= 0)
       buffer[len] = '\0';

TESTS/netsocket/tcp_hello_world/main.cpp

@@ -78,7 +78,6 @@ void test_tcp_hello_world() {
         int ret;
         while((ret = sock.recv(buffer+len, sizeof(buffer) - 1 - len)) > 0) {
             len += ret;
-            sock.set_timeout(0);
         }
         if(len >= 0)
             buffer[len] = '\0';

TESTS/netsocket/udp_dtls_handshake/main.cpp

@@ -108,7 +108,7 @@ void test_udp_dtls_handshake() {
 
         int step = 0;
         while (step < udp_dtls_handshake_count) {
-            err = sock.recvfrom(NULL, buffer, udp_dtls_handshake_pattern[step]);
+            err = sock.recvfrom(NULL, buffer, sizeof(buffer));
             printf("UDP: rx <- %d ", err);
 
             // check length