fix copy/paste error

Author: h2zero

src/NimBLEUtils.cpp

@@ -39,7 +39,7 @@ static const char* LOG_TAG = "NimBLEUtils";
  * @param [in] flags General purpose flags for the caller.
  * @param [in] buf A buffer for data.
  */
-NimBLETaskData::NimBLETaskData(void* pInstance = nullptr, int flags = 0, void* buf = nullptr)
+NimBLETaskData::NimBLETaskData(void* pInstance, int flags, void* buf)
     : m_pInstance(pInstance), m_flags(flags), m_pBuf(buf) {
 # if defined INC_FREERTOS_H
     m_pHandle = xTaskGetCurrentTaskHandle();