Cleanup: Remove dead code and unused files (#1614)

health/checks/openai.py

@@ -1,6 +1,8 @@
 """OpenAI API health check for Tanjun bot.
 
-Verifies the OpenAI API key is configured and the API is reachable.
+Validates:
+1. openAiKey is configured
+2. API is reachable with valid credentials
 """
 
 from __future__ import annotations

main.py

@@ -274,14 +274,11 @@ async def main() -> None:
     health_manager.register(LocaleFileHealthCheck())  # Uses default 5-minute interval
     health_manager.register(DatabaseHealthCheck())  # Uses default 5-minute interval
     health_manager.register(TwitchAPIHealthCheck())  # Uses default 5-minute interval
-    health_manager.register(OpenAIHealthCheck())  # Uses default 5-minute interval
     health_manager.register(GIPHYHealthCheck(), interval=1800)  # 30 minutes
     health_manager.register(BrawlStarsHealthCheck(), interval=1800)  # 30 minutes
     health_manager.register(ImgBBHealthCheck(), interval=1800)  # 30 minutes
     health_manager.register(BytebinHealthCheck(), interval=1800)  # 30 minutes
     health_manager.register(GitHubAPIHealthCheck(), interval=3600)  # 60 minutes
-    health_manager.register(OpenAIHealthCheck())  # Uses default 5-minute interval
-    health_manager.register(LocaleFileHealthCheck())  # Uses default 5-minute interval
     ok, critical_failures = await health_manager.run_startup_checks()
     if not ok:
         # Can't send Discord notification before login; log prominently instead.