Remove extraneous Heap.h include #1649

Author: icraggs

src/SSLSocket.c

@@ -27,8 +27,6 @@
  */
 
 #if defined(OPENSSL)
-#include "Heap.h"
-
 #include "SocketBuffer.h"
 #include "MQTTClient.h"
 #include "MQTTProtocolOut.h"
@@ -37,14 +35,14 @@
 #include "StackTrace.h"
 #include "Socket.h"
 
-#include "Heap.h"
-
 #include <string.h>
 #include <openssl/ssl.h>
 #include <openssl/err.h>
 #include <openssl/crypto.h>
 #include <openssl/x509v3.h>
 
+#include "Heap.h" /* must always be the last header as malloc, free are redefined */
+
 extern Sockets mod_s;
 
 static int SSLSocket_error(char* aString, SSL* ssl, SOCKET sock, int rc, int (*cb)(const char *str, size_t len, void *u), void* u);