Revert "Correction of eb2f86f"

This reverts commit ce834b527e4191881d6fe944588413420aa79f02.
Revert "NearestAttackableTarget search adjustments"

This reverts commit eb2f86f1b916700a35b70709e706c9a048316625.
Lowered chances for creeper, zombies and skeletons to do PathfinderGoalNearestAttackableTarget searches. 0 meant it would always look for the nearest target, when this pathfindergoal was executed. 5 is a 20% chance, and 10 is a 10% chance