Remove humanity hit for killing player zombies

If you kill a player zombie you should not lose humanity. Player_death
is now synced with the humanity hit code in the damage handler.

Also the killing blow set variable was moved up because the same
conditions were already checked above.

SQF/dayz_code/medical/morphine.sqf

@@ -45,7 +45,6 @@ if ((_unit == player) or (vehicle player != player)) then {
 		//Self Healing
 		_id = [player,player] execVM "\z\addons\dayz_code\medical\publicEH\medMorphine.sqf";
 	} else {
-		//PVCDZ_plr_Humanity = [player,50];
 		[50,0] call player_humanityChange;
 	};