Fix ender pearl crash

mods/ITEMS/mcl_throwing/ender_pearl.lua

@@ -31,7 +31,7 @@ function on_collide(self, pos, node)
 	end
 
 	-- Make sure we have a reference to the player
-	local player = self._thrower and core.get_player_by_name(self._thrower)
+	local player = self._owner and core.get_player_by_name(self._owner)
 	if not player then return end
 
 	-- Teleport and hurt player
@@ -113,7 +113,6 @@ vl_projectile.register("mcl_throwing:ender_pearl_entity",{
 
 	on_step = vl_projectile.update_projectile,
 	_lastpos={},
-	_thrower = nil,		-- Player ObjectRef of the player who threw the ender pearl
 	_vl_projectile = {
 		behaviors = {
 			vl_projectile.collides_with_solids,