Kernel/Storage: Remove unused IDEController::initialize() method

Author: https://github.com/supercomputer7
Commit: dac7e911e6
Pull-request: https://github.com/SerenityOS/serenity/pull/18276
Reviewed-by: https://github.com/Panky-codes

Kernel/Storage/ATA/GenericIDE/Controller.cpp

@@ -15,11 +15,6 @@
 
 namespace Kernel {
 
-UNMAP_AFTER_INIT NonnullLockRefPtr<IDEController> IDEController::initialize()
-{
-    return adopt_lock_ref(*new IDEController());
-}
-
 ErrorOr<void> IDEController::reset()
 {
     return Error::from_errno(ENOTIMPL);

Kernel/Storage/ATA/GenericIDE/Controller.h

@@ -18,7 +18,6 @@ class AsyncBlockDeviceRequest;
 class IDEChannel;
 class IDEController : public ATAController {
 public:
-    static NonnullLockRefPtr<IDEController> initialize();
     virtual ~IDEController() override;
 
     virtual LockRefPtr<StorageDevice> device(u32 index) const override final;