Kernel: Remove now unused StorageDevice constructor

Author: https://github.com/bgianfo
Commit: 54a2aaaa6f
Pull-request: https://github.com/SerenityOS/serenity/pull/10325
Reviewed-by: https://github.com/BenWiederhake

Kernel/Storage/StorageDevice.h

@@ -34,7 +34,6 @@ public:
     NonnullRefPtrVector<DiskPartition> partitions() const { return m_partitions; }
 
 protected:
-    StorageDevice(const StorageController&, size_t, u64, NonnullOwnPtr<KString>);
     StorageDevice(const StorageController&, int, int, size_t, u64, NonnullOwnPtr<KString>);
     // ^DiskDevice
     virtual StringView class_name() const override;