Use std::u16string for conversion between UTF-8 and UTF-16, FS:USER functions

src/core/hle/service/fs_user.h

@@ -11,35 +11,6 @@
 
 namespace FS_User {
 
-class FS_Path {
-public:
-    // Command to access archive file
-    enum LowPathType : u32 {
-        Invalid = 0,
-        Empty   = 1,
-        Binary  = 2,
-        Char    = 3,
-        Wchar   = 4
-    };
-
-    FS_Path(LowPathType type, u32 size, u32 pointer);
-
-    LowPathType GetType() const;
-
-    const std::vector<u8>& GetBinary() const;
-    const std::string& GetString() const;
-    const std::u16string& GetU16Str() const;
-
-    std::string AsString();
-    std::u16string AsU16Str();
-
-private:
-    LowPathType type;
-    std::vector<u8> binary;
-    std::string string;
-    std::u16string u16str;
-};
-
 /// Interface to "fs:USER" service
 class Interface : public Service::Interface {
 public: