remove use_persis_return_sim plus mypy fixes

[jlnav]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 37.50000% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.75%. Comparing base (b921293) to head (4e5ada4).
⚠️ Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
libensemble/gen_funcs/uniform_or_localopt.py	0.00%	2 Missing ⚠️
...ibensemble/gen_funcs/persistent_fd_param_finder.py	0.00%	1 Missing ⚠️
libensemble/manager.py	66.66%	0 Missing and 1 partial ⚠️
libensemble/sim_funcs/six_hump_camel.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1715      +/-   ##
===========================================
- Coverage    77.77%   77.75%   -0.02%     
===========================================
  Files           79       79              
  Lines         8192     8182      -10     
  Branches      1259     1259              
===========================================
- Hits          6371     6362       -9     
+ Misses        1581     1579       -2     
- Partials       240      241       +1     

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[shuds13]

Is the persistent sim example still getting tested.

Remove the sim and gen versions of this variable - check no persistent sim or gen is returning data that is not needed (ie. dupcliate of whatever was returned in loop). When they should return, you can see something with update H after loop.