Pong: remove Ball script

This example aims to show how to build a game without GDScript.
Remove the Ball script which was primarily exposing some custom inspector
properties.

Author: dsd

addons/block_code/examples/pong_game/ball.gd

@@ -1,6 +1,5 @@
 [gd_scene load_steps=5 format=3 uid="uid://c7l70grmkauij"]
 
-[ext_resource type="Script" path="res://addons/block_code/examples/pong_game/ball.gd" id="1_vdrab"]
 [ext_resource type="Texture2D" uid="uid://bcgr5amsq3jfl" path="res://addons/block_code/examples/pong_game/assets/ball.png" id="2_xkrmm"]
 
 [sub_resource type="PhysicsMaterial" id="PhysicsMaterial_c3m63"]
@@ -20,7 +19,6 @@ contact_monitor = true
 linear_velocity = Vector2(353.553, 353.553)
 linear_damp_mode = 1
 angular_damp_mode = 1
-script = ExtResource("1_vdrab")
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
 unique_name_in_owner = true

addons/block_code/examples/pong_game/ball.tscn

@@ -986,7 +986,6 @@ block_script = SubResource("Resource_lxj2y")
 modulate = Color(0.511, 0.362, 0.972, 1)
 position = Vector2(960, 544)
 gravity_scale = 0.0
-linear_velocity = Vector2(353.553, 353.553)
 
 [node name="BlockCode" type="Node" parent="Ball"]
 script = ExtResource("3_6jaq8")