Remove some unneeded changes

ml-agents/mlagents/trainers/behavior_id_utils.py

-from typing import NamedTuple, Optional
+from typing import NamedTuple
 from urllib.parse import urlparse, parse_qs
 
 
     behavior_id: str
     brain_name: str
     team_id: int
-    group_id: int
-        Parses a name_behavior_id of the form name?team=0&group=0
+        Parses a name_behavior_id of the form name?team=0
+
-        group_id: int = 0
-        if "group" in ids:
-            group_id = int(ids["group"][0])
-            behavior_id=name_behavior_id,
-            brain_name=name,
-            team_id=team_id,
-            group_id=group_id,
+            behavior_id=name_behavior_id, brain_name=name, team_id=team_id
-def create_name_behavior_id(
-    name: str, team_id: Optional[int] = None, group_id: Optional[int] = None
-) -> str:
+def create_name_behavior_id(name: str, team_id: int) -> str:
-    Reconstructs fully qualified behavior name from name and team_id
-    :param name: brain name
-    :param team_id: team ID
-    :return: name_behavior_id
-    """
-    final_name = name
-    if team_id is not None:
-        final_name += f"?team={team_id}"
-    if group_id is not None:
-        final_name += f"&group={group_id}"
-    return final_name
+   Reconstructs fully qualified behavior name from name and team_id
+   :param name: brain name
+   :param team_id: team ID
+   :return: name_behavior_id
+   """
+    return name + "?team=" + str(team_id)
 
 
 def get_global_agent_id(worker_id: int, agent_id: int) -> str:

ml-agents/mlagents/trainers/ghost/trainer.py

         :param parsed_behavior_id: Behavior ID that the policy should belong to.
         :param policy: Policy to associate with name_behavior_id.
         """
-        name_behavior_id = create_name_behavior_id(
-            parsed_behavior_id.brain_name, team_id=parsed_behavior_id.team_id
-        )
-        # Add policy only based on the team id, not the group id
-        self._name_to_parsed_behavior_id[
-            parsed_behavior_id.behavior_id
-        ] = parsed_behavior_id
+        name_behavior_id = parsed_behavior_id.behavior_id
+        self._name_to_parsed_behavior_id[name_behavior_id] = parsed_behavior_id
         self.policies[name_behavior_id] = policy
 
     def get_policy(self, name_behavior_id: str) -> Policy:
         :return: Policy associated with name_behavior_id
         """
-        # Get policy based on team id, but not group id
-        parsed_behavior_id = BehaviorIdentifiers.from_name_behavior_id(name_behavior_id)
-        name_behavior_id = create_name_behavior_id(
-            parsed_behavior_id.brain_name, team_id=parsed_behavior_id.team_id
-        )
         return self.policies[name_behavior_id]
 
     def _save_snapshot(self) -> None: