Removed unnecessary wrapper function from example

libraries/esp8266/examples/HwdtStackDump/HwdtStackDump.ino

@@ -36,19 +36,12 @@ const char* password = STAPSK;
 // gets to runs.
 extern "C" {
 #if CORE_MOCK
- int thunk_thk_printf1(const void *fmt) {
- return ets_uart_printf(fmt);
- }
+ #define thunk_ets_uart_printf ets_uart_printf
 
 #else
- int thunk_thk_printf1(const char *fmt);
- // Second stack thunked helper - this macro creates the global function thunk_thk_printf1
- make_stack_thunk(thk_printf1);
-
- // This function is called via thunk_thk_printf1 and will run with the BearSSL stack.
- int thk_printf1(const char *fmt) {
- return ets_uart_printf(fmt);
- }
+ int thunk_ets_uart_printf(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
+ // Second stack thunked helper - this macro creates the global function thunk_ets_uart_printf
+ make_stack_thunk(ets_uart_printf);
 #endif
 };
 ////////////////////////////////////////////////////////////////////
@@ -65,7 +58,7 @@ void setup(void) {
 
  // This allows us to test dumping a BearSSL stack after HWDT.
  stack_thunk_add_ref();
- thunk_thk_printf1("Using Thunk Stack to print this line.\n\n");
+ thunk_ets_uart_printf("Using Thunk Stack to print this line.\n\n");
 
  // We don't need this for this example; however, starting WiFi uses a little
  // more of the SYS stack.