Remove examples

examples/PIC32/mqtt_client/firmware/src/main.c

@@ -1,22 +0,0 @@
-/*
- * Copyright (c) 2016 Cesanta Software Limited
- * All rights reserved
- */
-
-#include <stddef.h>
-#include <stdlib.h>
-#include "system/common/sys_module.h"
-
-int main(void) {
-  /* Initialize all MPLAB Harmony modules, including application(s). */
-  SYS_Initialize(NULL);
-
-  while (1) {
-    /* Maintain state machines of all polled MPLAB Harmony modules. */
-    SYS_Tasks();
-  }
-
-  /* Execution should not come here during normal operation */
-
-  return (EXIT_FAILURE);
-}