Fix test for alternative routes

[karussell]

This is likely some internal problem and so will ignore this test until we fix this: https://github.com/graphhopper/graphhopper-navigation/commit/1b6594b89fb7d4db49fe376a74a41d3c0fad93b1#diff-348581eac978bca46d0e4226fd7ff160R190

Should be fixed after deploying 1.0-pre32