Revert "Add from __future__ import annotations everywhere" for examples (#1898)

This partially reverts commit ddf8c8c.

Author: cspotcode

arcade/examples/array_backed_grid.py

@@ -13,8 +13,6 @@
 If Python and Arcade are installed, this example can be run from the command line with:
 python -m arcade.examples.array_backed_grid
 """
-from __future__ import annotations
-
 import arcade
 
 # Set how many rows and columns we will have

arcade/examples/array_backed_grid_buffered.py

@@ -13,8 +13,6 @@
 If Python and Arcade are installed, this example can be run from the command line with:
 python -m arcade.examples.array_backed_grid_buffered
 """
-from __future__ import annotations
-
 import arcade
 
 # Set how many rows and columns we will have

arcade/examples/array_backed_grid_sprites_1.py

@@ -12,8 +12,6 @@
 If Python and Arcade are installed, this example can be run from the command line with:
 python -m arcade.examples.array_backed_grid_sprites_1
 """
-from __future__ import annotations
-
 import arcade
 
 # Set how many rows and columns we will have

arcade/examples/array_backed_grid_sprites_2.py

@@ -12,8 +12,6 @@
 If Python and Arcade are installed, this example can be run from the command line with:
 python -m arcade.examples.array_backed_grid_sprites_2
 """
-from __future__ import annotations
-
 import arcade
 
 # Set how many rows and columns we will have

arcade/examples/astar_pathfinding.py

@@ -7,8 +7,6 @@
 python -m arcade.examples.astar_pathfinding
 """
 
-from __future__ import annotations
-
 import arcade
 import random
 

arcade/examples/asteroid_smasher.py

@@ -13,8 +13,6 @@
 the command line with:
 python -m arcade.examples.asteroid_smasher
 """
-from __future__ import annotations
-
 import random
 import math
 import arcade

arcade/examples/background_blending.py

@@ -9,8 +9,6 @@
 python -m arcade.examples.background_blending
 """
 
-from __future__ import annotations
-
 import arcade
 import arcade.experimental.background as background
 

arcade/examples/background_groups.py

@@ -11,8 +11,6 @@
 python -m arcade.examples.background_groups
 """
 
-from __future__ import annotations
-
 import arcade
 import arcade.experimental.background as background
 

arcade/examples/background_parallax.py

@@ -13,8 +13,6 @@
 python -m arcade.examples.background_parallax
 """
 
-from __future__ import annotations
-
 import arcade
 import arcade.experimental.background as background
 

arcade/examples/background_scrolling.py

@@ -9,8 +9,6 @@
 If Python and Arcade are installed, this example can be run from the command line with:
 python -m arcade.examples.background_scrolling
 """
-from __future__ import annotations
-
 import arcade
 import arcade.experimental.background as background