Reworked blind running around

This should be more in line with how we do current fearpath stuff
and with live.

zone/mob.cpp

@@ -114,7 +114,6 @@ Mob::Mob(const char* in_name,
 	fear_walkto_y = -999999;
 	fear_walkto_z = -999999;
 	curfp = false;
-	is_blind = false;
 
 	AI_Init();
 	SetMoving(false);