Revert "Paramaterize TransitSystemBuilder to use be able to interpolate stoptimes"

This reverts commit 027b325bd279def028a60ca581c51ed6f341a1ee.
Revert "Add interpolation to all transitsystembuilder calls in project"

This reverts commit 168ce10e6b6e5b0e185bcd32a178f36fc48ede50.
Add interpolation to transitsystembuilder