Simplify away per piece king ring attack count

[TheRealGioviok]

Passed nonregr STC

Test  | simplring
Elo   | 2.15 +- 2.63 (95%)
SPRT  | 8.0+0.08s Threads=1 Hash=16MB
LLR   | 2.95 (-2.94, 2.94) [-3.00, 0.00]
Games | N: 22980 W: 5882 L: 5740 D: 11358
Penta | [271, 2744, 5367, 2788, 320]

https://ob.cwchess.org/test/1164/

Passed nonregr LTC

Test  | simplring
Elo   | 2.16 +- 2.49 (95%)
SPRT  | 40.0+0.40s Threads=1 Hash=64MB
LLR   | 2.94 (-2.94, 2.94) [-3.00, 0.00]
Games | N: 21416 W: 5195 L: 5062 D: 11159
Penta | [120, 2522, 5287, 2663, 116]

https://ob.cwchess.org/test/1165/

Bench: 15772962