fix bugs and improvement

app/models/booking.rb

@@ -61,7 +61,6 @@ class Booking < ApplicationRecord
   scope :active, -> {where("booking_status != 'moved'")}
   scope :today, -> {where("created_at >= #{Time.now.utc}")}
   scope :assign, -> { where(booking_status: 'assign')}
-  scope :within_time_limit, -> { where(checkin_at: Lookup.get_checkin_time_limit.hours.ago..DateTime::Infinity.new) }
 
   def self.sync_booking_records(bookings)
     if !bookings.nil?