Removed TODO from new shan chen tutorials

6 jobs for shan_chen in 4 minutes and 50 seconds (queued for 1 second)
Name Stage Failure
tests-and-coverage Test
35.69s call     lbmpy_tests/phasefield/test_analytical_n_phase_full.ipynb::lbmpy_tests/phasefield/test_analytical_n_phase_full.ipynb
32.62s call lbmpy_tests/full_scenarios/schaefer_turek/
31.31s call doc/notebooks/02_tutorial_boundary_setup.ipynb::doc/notebooks/02_tutorial_boundary_setup.ipynb
31.14s call lbmpy_tests/
============= 3 failed, 151 passed, 592 warnings in 263.16 seconds =============
Uploading artifacts...
coverage_report: found 64 matching files
Uploading artifacts to coordinator... ok
id=313759 responseStatus=201 Created token=hTnJyi3v
ERROR: Job failed: exit code 1