Skip mobility danger for drop variants

Skip mobility danger for drop variants

shogi STC
LLR: 2.95 (-2.94,2.94) [0.00,10.00]
Total: 1223 W: 671 L: 551 D: 1
http://www.variantfishtest.org:6543/tests/view/5feb75826e23db221d9e978d

shogi LTC
LLR: 2.95 (-2.94,2.94) [0.00,10.00]
Total: 1463 W: 788 L: 665 D: 10
http://www.variantfishtest.org:6543/tests/view/5feb876b6e23db221d9e979d

crazyhouse STC
LLR: 2.96 (-2.94,2.94) [-10.00,5.00]
Total: 2044 W: 1019 L: 967 D: 58
http://www.variantfishtest.org:6543/tests/view/5feb78aa6e23db221d9e9790

crazyhouse LTC
LLR: 2.98 (-2.94,2.94) [-10.00,5.00]
Total: 2570 W: 1260 L: 1212 D: 98
http://www.variantfishtest.org:6543/tests/view/5febb3ab6e23db221d9e979f

minishogi STC
LLR: 2.95 (-2.94,2.94) [-10.00,5.00]
Total: 1559 W: 808 L: 751 D: 0
http://www.variantfishtest.org:6543/tests/view/5feb793c6e23db221d9e9793

minishogi LTC
LLR: 2.96 (-2.94,2.94) [-10.00,5.00]
Total: 1724 W: 890 L: 834 D: 0
http://www.variantfishtest.org:6543/tests/view/5febb3c26e23db221d9e97a1