WiFiSSLSE050Client: use _ca_cert_custom from MbedSSLClient

Author: pennam

libraries/SE05X/src/WiFiSSLSE050Client.cpp

@@ -29,8 +29,3 @@ void arduino::WiFiSSLSE050Client::setEccSlot(int KeySlot, const byte cert[], int
   _client_cert_len = certLen;
   _client_cert = cert;
 }
-
-void arduino::WiFiSSLSE050Client::appendCustomCACert(const char ca_cert[]) {
-
-  _ca_cert = ca_cert;
-}

libraries/SE05X/src/WiFiSSLSE050Client.h

@@ -36,7 +36,6 @@ class WiFiSSLSE050Client : public arduino::WiFiSSLClient {
     stop();
   }
   void setEccSlot(int KeySlot, const byte cert[], int certLen);
-  void appendCustomCACert(const char ca_cert[]);
 
 private:
   const byte* _client_cert;
@@ -50,7 +49,7 @@ class WiFiSSLSE050Client : public arduino::WiFiSSLClient {
       return 0;
     }
 
-    if( NSAPI_ERROR_OK != ((TLSSocket*)sock)->append_root_ca_cert(_ca_cert)) {
+    if( NSAPI_ERROR_OK != ((TLSSocket*)sock)->append_root_ca_cert(_ca_cert_custom)) {
       return 0;
     }