Walk-only, bike-only results returned in excess of max walk/bike distance.

[binh-dam-ibigroup]

To reproduce:

• plan a "long" trip between two empty locations (e.g. starting or finishing in woods or on water)
• See the bike-only and walk-only results returned.

The walk-only and bike-only itineraries should not be returned or shown.

Example query (FDOT): http://localhost:9966/#/?ui_activeSearch=lxrxohact&ui_activeItinerary=0&fromPlace=Lake%20Fairview%2C%20Orange%20County%2C%20FL%2C%20USA%3A%3A28.594332146291375%2C-81.40613729367033&toPlace=Lake%20Conway%2C%20Belle%20Isle%2C%20FL%2C%20USA%3A%3A28.47365917619227%2C-81.34894093091135&date=2021-03-23&time=12%3A36&arriveBy=false&mode=WALK%2CBUS%2CRAIL&showIntermediateStops=true&maxWalkDistance=1207&optimize=QUICK&walkSpeed=1.34&ignoreRealtimeUpdates=true&companies=&bannedRoutes=&numItineraries=3&otherThanPreferredRoutesPenalty=900&preferredRoutes=

Originally posted by @binh-dam-ibigroup in #339 (comment)