Skip early pruning in singular search

[TarasVuk]

This patch skips early pruning and updating of history based on static eval difference in singular search.

Passed STC:
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 387872 W: 97721 L: 97890 D: 192261
Ptnml(0-2): 1202, 46691, 98263, 46634, 1146
https://tests.stockfishchess.org/tests/view/6552660c136acbc57353490a

Passed LTC:
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 127518 W: 31399 L: 31285 D: 64834
Ptnml(0-2): 80, 14442, 34606, 14546, 85
https://tests.stockfishchess.org/tests/view/655502e5136acbc573537b9b

bench: 1498102

[Disservin]

I'm not particular fond of introducing a new goto jump. It also skips Probcut entirely, whereas before it only skipped a matching move inside probcut.

[vondele]

I also don't really see this as a simplification patch.

[Disservin]

Yeah, I'm closing it, thanks. Interestingly one might try to skip probcut in case there's a excluded move, with gainer bounds perhaps?

[peregrineshahin]

Yeah, I'm closing it, thanks. Interestingly one might try to skip probcut in case there's a excluded move, with gainer bounds perhaps?

Was tried few days ago by cj5.

[TarasVuk]

I also don't really see this as a simplification patch.

I also wasn't sure about it.