docs: simplify authorization.md Python code (#1164)

Author: arkid15r

docs/content/advanced/authorization.md

@@ -47,8 +47,8 @@ def authorize(enterprise_id, team_id, logger):
     # You can implement your own logic to fetch token here
     for team in installations:
         # enterprise_id doesn't exist for some teams
-        is_valid_enterprise = True if (("enterprise_id" not in team) or (enterprise_id == team["enterprise_id"])) else False
-        if ((is_valid_enterprise == True) and (team["team_id"] == team_id)):
+        is_valid_enterprise = "enterprise_id" not in team or enterprise_id == team["enterprise_id"]
+        if is_valid_enterprise and team["team_id"] == team_id:
           # Return an instance of AuthorizeResult
           # If you don't store bot_id and bot_user_id, could also call `from_auth_test_response` with your bot_token to automatically fetch them
           return AuthorizeResult(