Remove trajectories based `EnsembleProblem(::OptimizationProblem...)` method to avoid QMC dep

[Vaibhavdixit02]

Checklist

• [ ] Appropriate tests were added
• [ ] Any code changes were done in a way that does not break public API
• [ ] All documentation related to code changes were updated
• [ ] The new code follows the contributor guidelines, in particular the ScioML Style Guide and COLPRAC.
• [ ] Any new documentation only uses public API

Additional context

Add any other context about the problem here.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (9fdb9c8) 25.91% compared to head (022811a) 29.12%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #557 +/- ## ========================================== + Coverage 25.91% 29.12% +3.20% ========================================== Files 53 53 Lines 4140 4141 +1 ========================================== + Hits 1073 1206 +133 + Misses 3067 2935 -132 ```

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