Minor simplifications and cleanup in search #4059
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bench: 5913510
PikaCat-OuO
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Oct 7, 2022
STC: https://tests.stockfishchess.org/tests/view/629d6775593a4a9b6482c1ec LLR: 2.93 (-2.94,2.94) <-2.25,0.25> Total: 77416 W: 20683 L: 20589 D: 36144 Ptnml(0-2): 317, 8690, 20620, 8744, 337 LTC: https://tests.stockfishchess.org/tests/view/629db4be593a4a9b6482ceef LLR: 2.95 (-2.94,2.94) <-2.25,0.25> Total: 106544 W: 28752 L: 28705 D: 49087 Ptnml(0-2): 97, 10692, 31641, 10751, 91 closes official-stockfish/Stockfish#4059 Bench: 5913510 (cherry picked from commit 2d5dcf3)
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STC: https://tests.stockfishchess.org/tests/view/629d6775593a4a9b6482c1ec
LLR: 2.93 (-2.94,2.94) <-2.25,0.25>
Total: 77416 W: 20683 L: 20589 D: 36144
Ptnml(0-2): 317, 8690, 20620, 8744, 337
LTC: https://tests.stockfishchess.org/tests/view/629db4be593a4a9b6482ceef
LLR: 2.95 (-2.94,2.94) <-2.25,0.25>
Total: 106544 W: 28752 L: 28705 D: 49087
Ptnml(0-2): 97, 10692, 31641, 10751, 91
bench: 5913510
Note: The only reason this changes bench is because on line 89 we now use the second lowest bit (instead of the lowest bit) as a source or randomness. This avoids having to multiply by two.