https://api.sciener.com/v3/qrCode/delete
Delete the QR code from the cloud serer, then the link will be invalid and QR code can't be refreshed, and also can't get QR code data.

Note: the generated QR code is still valid in valid period(10 minutes).

Name	Type	Required	Description
clientId	String	Y	The app_id which is assigned by system when you create an application
accessToken	String	Y	Access token
lockId	Int	Y	Lock ID
qrCodeId	Int	Y	QR code id
date	Long	Y	Current time (timestamp in millisecond)

Parameter	Type	Description
errcode	Int	Error code
errmsg	String	Error message

{
    "errcode": 0, 
    "errmsg": "none error message",
    "description": "none error message or means yes"
}