Warning in performance test step-68

[bangerth]

/scratch/users/testsuite/testsuite-hSJKfnb8/dealii/tests/performance/timing_step_68.cc: In instantiation of 'void Step68::ParticleTracking<dim>::generate_particles() [with int dim = 2]':
/scratch/users/testsuite/testsuite-hSJKfnb8/dealii/tests/performance/timing_step_68.cc:428:5:   required from 'Measurement Step68::ParticleTracking<dim>::run() [with int dim = 2]'
/scratch/users/testsuite/testsuite-hSJKfnb8/dealii/tests/performance/timing_step_68.cc:507:31:   required from here
/scratch/users/testsuite/testsuite-hSJKfnb8/dealii/tests/performance/timing_step_68.cc:267:18: warning: unused variable 'outer_radius' [-Wunused-variable]
  267 |     const double outer_radius = 0.50;
      |                  ^~~~~~~~~~~~
/scratch/users/testsuite/testsuite-hSJKfnb8/dealii/tests/performance/timing_step_68.cc:268:18: warning: unused variable 'inner_radius' [-Wunused-variable]
  268 |     const double inner_radius = 0.01;
      |                  ^~~~~~~~~~~~

Seen in https://cdash.dealii.org/test/1393689

[tamiko]

@blaisb ping

[blaisb]

Noted @tamiko ! Will open a PR this morning

[blaisb]

the merger of #15717 should have fixed this issue. I think you can close it now.