removed older version of matrix product operator

Status Name Job ID Coverage
  Static Checks
canceled check_no_asserts #1365415

 
  Build Docker
canceled build_docker_from_cache #1365416

 
  Test
canceled test_mpi #1365418

canceled test_serial #1365417

 
  Demo Runs
canceled run_bernoulli #1365426

canceled run_curve_fitting #1365427

canceled run_getting_density #1365425

canceled run_getting_started_1 #1365421

canceled run_getting_started_2 #1365422

canceled run_getting_started_3 #1365423

canceled run_getting_started_mf #1365424

canceled run_ipynb0 #1365419

canceled run_ipynb1 #1365420

canceled run_meanfield #1365429

canceled run_nonlinearity_guide #1365430

canceled run_visual_vi #1365428