Kernel: Refactor storage stack with u64 as number of blocks

Author: https://github.com/boricj
Commit: 9a3aa7eb0b
Pull-request: https://github.com/SerenityOS/serenity/pull/5766
Reviewed-by: https://github.com/supercomputer7

Kernel/Storage/RamdiskDevice.h

@@ -43,7 +43,6 @@ public:
 
     // ^StorageDevice
     virtual Type type() const override { return StorageDevice::Type::Ramdisk; }
-    virtual size_t max_addressable_block() const override;
 
     // ^BlockDevice
     virtual void start_request(AsyncBlockDeviceRequest&) override;