cleanup

benchmarks/2d/ReplaceDuplicatePoints_Bug.geo

benchmarks/2d/Square-01.geo

benchmarks/2d/bad_ruled_example.geo

benchmarks/2d/disk_sym.geo

benchmarks/2d/embedded_points.geo

benchmarks/2d/field_nico.geo

benchmarks/2d/machine/Functions.inc

benchmarks/2d/machine/Machine.geo

benchmarks/2d/machine/PhysNum.inc

benchmarks/2d/machine/Rotor.inc

benchmarks/2d/machine/Rotor3kW.inc

benchmarks/2d/machine/Stator.inc

benchmarks/2d/machine/Stator3kW.inc

benchmarks/2d/machine2/Machine.geo

benchmarks/2d/machine2/Rotor1.inc

benchmarks/2d/machine2/Stator1.inc

benchmarks/2d/machine3/Machine.geo

benchmarks/2d/machine3/Rotor.inc

benchmarks/2d/machine3/Stator.inc

benchmarks/2d/periodic_rotation_on_axis.geo