Bump Car racing and Remove Car Racing Discrete (#2963)

* Allows a new RNG to be generated with seed=-1 and updated env_checker to fix bug if environment doesn't use np_random in reset

* Revert "fixed `gym.vector.make` where the checker was being applied in the opposite case than was intended to (#2871)"

This reverts commit 519dfd9.

* Remove bad pushed commits

* Fixed spelling in core.py

* Pins pytest to the last py 3.6 version

* Allow Box automatic scalar shape

* Add test box and change default from () to (1,)

* update Box shape inference with more strict checking

* Update the box shape and add check on the custom Box shape

* Removed incorrect shape type and assert shape code

* Update the Box and associated tests

* Move dependency error to inside the atari environment

* Update the gym version to v0.25.0

* Bump car racing and remove car racing discrete

Author: pseudo-rnd-thoughts

gym/envs/__init__.py

@@ -83,20 +83,12 @@
 )
 
 register(
-    id="CarRacing-v1",
+    id="CarRacing-v2",
     entry_point="gym.envs.box2d.car_racing:CarRacing",
     max_episode_steps=1000,
     reward_threshold=900,
 )
 
-register(
-    id="CarRacingDiscrete-v1",
-    entry_point="gym.envs.box2d.car_racing:CarRacing",
-    kwargs={"continuous": False},
-    max_episode_steps=1000,
-    reward_threshold=900,
-)
-
 # Toy Text
 # ----------------------------------------