Email popup while approving leave, through email notification

Summary:

Hi Folks,

For leave approval, manager got this approval notification in email to approve:

Content (please ensure you mask any confidential information):

When i try to approve i am getting the below email popup. I don't want this and popup and leave should be approved. Please suggest.

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):