Remove empty 'exec_policy::nested' class

[SSoelvsten]

This class is essentially dead code...

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.315%. Comparing base (615f1e4) to head (aeae577).

❗ Current head aeae577 differs from pull request most recent head fc84ee6. Consider uploading reports for the commit fc84ee6 to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #643   +/-   ##
=========================================
  Coverage   97.315%   97.315%           
=========================================
  Files           90        90           
  Lines         6480      6480           
=========================================
  Hits          6306      6306           
  Misses         174       174           

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[github-actions]

🟡 Regression Test (QBF 'breakthrough/3x4_19_bwnib')

'origin/exec_policy/remove-nested' is a change in performance of -0.03% (stdev: 1.15%).

...	origin/main	origin/exec_policy/remove-nested
Mean	24318.33	24325.33
Standard Deviation	174.86	279.46

Number of samples: 3

[github-actions]

🟢 Regression Test (12-Queens)

'origin/exec_policy/remove-nested' is a change in performance of 0.09% (stdev: 0.59%).

...	origin/main	origin/exec_policy/remove-nested
Mean	11511.50	11500.75
Standard Deviation	41.38	67.56

Number of samples: 4

[github-actions]

🟡 Regression Test (Picotrav 'adder')

'origin/exec_policy/remove-nested' is a change in performance of -3.60% (stdev: 8.95%).

...	origin/main	origin/exec_policy/remove-nested
Mean	9160.70	9490.20
Standard Deviation	113.47	849.49

Number of samples: 10

[github-actions]

🟢 Regression Test (Picotrav 'mem_ctrl')

'origin/exec_policy/remove-nested' is a change in performance of 0.23% (stdev: 0.23%).

...	origin/main	origin/exec_policy/remove-nested
Mean	113163.67	112898.67
Standard Deviation	259.21	247.52

Number of samples: 3

[github-actions]

🟡 Regression Test (14-Queens)

'origin/exec_policy/remove-nested' is a change in performance of -0.31% (stdev: 0.37%).

...	origin/main	origin/exec_policy/remove-nested
Mean	266171.33	267001.67
Standard Deviation	935.52	993.36

Number of samples: 3

[github-actions]

🟡 Regression Test (QBF 'connect4/4x4_9_connect3_bwnib')

'origin/exec_policy/remove-nested' is a change in performance of -1.32% (stdev: 1.72%).

...	origin/main	origin/exec_policy/remove-nested
Mean	1158.50	1173.75
Standard Deviation	9.54	20.17

Number of samples: 4

[github-actions]

🟡 Regression Test (Picotrav 'arbiter')

'origin/exec_policy/remove-nested' is a change in performance of -0.07% (stdev: 0.39%).

...	origin/main	origin/exec_policy/remove-nested
Mean	62945.67	62990.00
Standard Deviation	245.61	189.60

Number of samples: 3

[github-actions]

🟡 Regression Test (QBF 'domineering/5x5_13_bwnib')

'origin/exec_policy/remove-nested' is a change in performance of -0.19% (stdev: 0.88%).

...	origin/main	origin/exec_policy/remove-nested
Mean	22700.33	22744.00
Standard Deviation	120.23	199.67

Number of samples: 3

[github-actions]

🔴 Regression Test (QBF 'ep_dual/8x8_6_e-8-1_p-2-3_bwnib')

'origin/exec_policy/remove-nested' is a change in performance of -1.55% (stdev: 1.49%).

...	origin/main	origin/exec_policy/remove-nested
Mean	4174.75	4239.25
Standard Deviation	35.13	63.23

Number of samples: 4

[github-actions]

🟢 Regression Test (QBF 'ep/8x8_7_e-8-1_p-3-4_bwnib')

'origin/exec_policy/remove-nested' is a change in performance of 0.38% (stdev: 1.17%).

...	origin/main	origin/exec_policy/remove-nested
Mean	11382.25	11338.50
Standard Deviation	132.71	111.46

Number of samples: 4