Achievements: Remove unused NeedsIdleUpdate()

src/core/achievements.cpp

@@ -828,15 +828,6 @@ void Achievements::IdleUpdate()
   rc_client_idle(s_state.client);
 }
 
-bool Achievements::NeedsIdleUpdate()
-{
-  if (!IsActive())
-    return false;
-
-  const auto lock = GetLock();
-  return (s_state.http_downloader && s_state.http_downloader->HasAnyRequests());
-}
-
 void Achievements::FrameUpdate()
 {
   if (!IsActive())

src/core/achievements.h

@@ -58,9 +58,6 @@ void FrameUpdate();
 /// Called when the system is paused, because FrameUpdate() won't be getting called.
 void IdleUpdate();
 
-/// Returns true if idle updates are necessary (e.g. outstanding requests).
-bool NeedsIdleUpdate();
-
 /// Saves/loads state.
 bool DoState(StateWrapper& sw);