Delete identity_env.py (#588)

baselines/common/identity_env.py

@@ -1,30 +0,0 @@
-from gym import Env
-from gym.spaces import Discrete
-
-
-class IdentityEnv(Env):
-    def __init__(
-            self,
-            dim,
-            ep_length=100,
-    ):
-
-        self.action_space = Discrete(dim)
-        self.reset()
-
-    def reset(self):
-        self._choose_next_state()
-        self.observation_space = self.action_space
-
-        return self.state
-
-    def step(self, actions):
-        rew = self._get_reward(actions)
-        self._choose_next_state()
-        return self.state, rew, False, {}
-
-    def _choose_next_state(self):
-        self.state = self.action_space.sample()
-
-    def _get_reward(self, actions):
-        return 1 if self.state == actions else 0