refactor(Core): remove unused imports (#17094)

src/server/game/Battlefield/Battlefield.cpp

@@ -22,7 +22,6 @@
 #include "GameGraveyard.h"
 #include "GameTime.h"
 #include "GridNotifiers.h"
-#include "GridNotifiersImpl.h"
 #include "Group.h"
 #include "GroupMgr.h"
 #include "Map.h"
@@ -33,6 +32,12 @@
 #include "Transport.h"
 #include "WorldPacket.h"
 
+/// @todo: this import is not necessary for compilation and marked as unused by the IDE
+//  however, for some reasons removing it would cause a damn linking issue
+//  there is probably some underlying problem with imports which should properly addressed
+//  see: https://github.com/azerothcore/azerothcore-wotlk/issues/9766
+#include "GridNotifiersImpl.h"
+
 Battlefield::Battlefield()
 {
     m_Timer = 0;