Skip king proximity malus when attacking king ring

Skip king proximity malus when attacking king ring

shogi STC
LLR: 2.95 (-2.94,2.94) [0.00,10.00]
Total: 2087 W: 1103 L: 971 D: 13
http://www.variantfishtest.org:6543/tests/view/5fdf764f6e23db221d9e95fa

shogi LTC
LLR: 2.96 (-2.94,2.94) [0.00,10.00]
Total: 950 W: 531 L: 415 D: 4
http://www.variantfishtest.org:6543/tests/view/5fe05bac6e23db221d9e961d

crazyhouse STC
LLR: 2.98 (-2.94,2.94) [-10.00,5.00]
Total: 1699 W: 855 L: 800 D: 44
http://www.variantfishtest.org:6543/tests/view/5fdf83966e23db221d9e9606