Remove most unused OTP1 fields

[binh-dam-ibigroup]

Description

This PR is companion for ibi-group/otp-middleware#334 but does not require it.
Most of old OTP1, unused stuff is removed (except agency*, route*, and stop* fields that will be addressed in a subsequent PR) and some OTP2 fields that appears in mocks but aren't queried are removed too.

Fields removed:

• Itinerary.transitTime
• Itinerary.walkLimitExceeded
• Itinerary.fare
• Leg.pathway
• Leg.rentedCar
• Leg.rentedVehicle
• Leg.hailedCar
• Leg.serviceDate
• Leg.interstopGeometry
• from/to.orig
• from/to.departure
• from/to.arrival
• Trip.departureStopTime
• Trip.arrivalStopTime
• OTP1 calltaker query param startTransitStopId

PR Checklist:

• Does the code follow accessibility standards (WCAG 2.1 AA Compliant)?
• Are all languages supported (Internationalization/Localization)?
• Are appropriate Typescript types implemented?

[miles-grant-ibigroup]

Everything seems to be working, even with field trip! Additional testing might flag some problems with the util methods missing, but I think we are ok to merge for now! Happy to see so much of this old code gone