fix double booked day validation

db/index.ts

@@ -1,9 +1,7 @@
 import * as mongoose from 'mongoose'
-import { getYear } from 'date-fns'
 import BookerModel, { Booker } from './booker'
 import BookingModel, { Booking } from './booking'
 import BillModel, { Bill } from './bill'
-import { dateFormatFrontend } from '../helpers/date'
 import { BOOKING_STATUS } from './enums'
 
 let connectedPromise: Promise<typeof mongoose>
@@ -66,20 +64,6 @@ export async function createBooking({
     org,
     destination,
   })
-  const bookedDays = await getBookedDays()
-
-  const doubleBookedDays = booking.days.filter((day: string) =>
-    bookedDays.includes(day)
-  )
-  if (doubleBookedDays.length) {
-    const error = new mongoose.Error.ValidationError(booking.uuid)
-    error.errors.days = new mongoose.Error.ValidatorError(
-      `${doubleBookedDays
-        .map((dateString) => dateFormatFrontend(new Date(dateString)))
-        .join(', ')} schon gebucht`
-    )
-    throw error
-  }
 
   let booker = await BookerModel.findOne({ email }).exec()
   if (!booker) {