chore/perf: Remove old SRC level log env vars with no impact (#20045)

* Update openai.py

* Update env.py

* Merge pull request open-webui#19030 from open-webui/dev (#119)

Co-authored-by: Tim Baek <tim@openwebui.com>
Co-authored-by: Claude <noreply@anthropic.com>

---------

Co-authored-by: Tim Baek <tim@openwebui.com>
Co-authored-by: Claude <noreply@anthropic.com>

backend/open_webui/routers/knowledge.py

@@ -27,13 +27,11 @@ from open_webui.utils.auth import get_verified_user
 from open_webui.utils.access_control import has_access, has_permission
 
 
-from open_webui.env import SRC_LOG_LEVELS
 from open_webui.config import BYPASS_ADMIN_ACCESS_CONTROL
 from open_webui.models.models import Models, ModelForm
 
 
 log = logging.getLogger(__name__)
-log.setLevel(SRC_LOG_LEVELS["MODELS"])
 
 router = APIRouter()