zephyrClient: fix SSL overload

Author: facchinm

libraries/SocketWrapper/ZephyrClient.h

@@ -31,9 +31,6 @@ class ZephyrClient : public arduino::Client, ZephyrSocketWrapper {
         return ret;
     }
 #if defined(CONFIG_NET_SOCKETS_SOCKOPT_TLS)
-    int connectSSL(const char* host, uint16_t port, const char* cert) {
-        return this->connectSSL(host, port, (char*)cert);
-    }
     int connectSSL(const char* host, uint16_t port, char* cert) {
         auto ret = ZephyrSocketWrapper::connectSSL((char*)host, port, cert);
         if (ret) {

libraries/SocketWrapper/ZephyrSSLClient.h

@@ -10,8 +10,8 @@
 class ZephyrSSLClient : public ZephyrClient {
 
 public:
-    int connect(const char* host, uint16_t port, const char* cert) {
-        return connectSSL(host, port, (char*)cert);
+    int connect(const char* host, uint16_t port) override {
+        return connectSSL(host, port, nullptr);
     }
     int connect(const char* host, uint16_t port, char* cert) {
         return connectSSL(host, port, cert);