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/auths.py

@@ -37,7 +37,6 @@ from open_webui.env import (
     WEBUI_AUTH_COOKIE_SECURE,
     WEBUI_AUTH_SIGNOUT_REDIRECT_URL,
     ENABLE_INITIAL_ADMIN_SIGNUP,
-    SRC_LOG_LEVELS,
 )
 from fastapi import APIRouter, Depends, HTTPException, Request, status
 from fastapi.responses import RedirectResponse, Response, JSONResponse
@@ -81,7 +80,6 @@ from ldap3.utils.conv import escape_filter_chars
 router = APIRouter()
 
 log = logging.getLogger(__name__)
-log.setLevel(SRC_LOG_LEVELS["MAIN"])
 
 signin_rate_limiter = RateLimiter(
     redis_client=get_redis_client(), limit=5 * 3, window=60 * 3