Can I hide or remove the guest number? - WPRentals Theme Documentation

The Guests Dropdown will not show if you use Object rentals.

This is enabled from Theme Options – Booking Configuration – Guest Selector Settings

Select Object Rental
Select Show the Guest dropdown in Submission Form -> NO
Once the Object Rental is enabled, all per night labels in the theme will become per day.

You will see the booking form without Guest.

This is done with css

/*remove guest from owner contact form*/
.modal-body #booking_guest_no {
display: none;
}