Clears a member's email addresses.
The deleteMemberEmails() function returns a Promise that resolves to a member object
when the specified member's email addresses are cleared.
deleteMemberEmails() deletes all email addresses from the contactDetails.emails array,
which affects both the specified member and the attached contact.
Note:
The member can still log in with their loginEmail,
which is not changed when this function is called.
ID of the member whose email addresses will be deleted.