Remove travelled roads route line

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/request-a-feature/remove-travelled-roads-route-line/
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Having the blue route line remain on screen (in AA, for my context at least) for roads that you've already traveled on along that calculated route can be very confusing sometimes, especially if you've missed your turn