more delete removals

Signed-off-by: Rosen Penev <rosenp@gmail.com>

src/basicio.cpp

@@ -1383,8 +1383,6 @@ class HttpIo::HttpImpl : public Impl {
   HttpImpl(const std::string& url, size_t blockSize);
   Exiv2::Uri hostInfo_;  //!< the host information extracted from the path
 
-  ~HttpImpl() override = default;
-
   // METHODS
   /*!
     @brief Get the length (in bytes) of the remote file.
@@ -1415,10 +1413,6 @@ class HttpIo::HttpImpl : public Impl {
     @throw Error if it fails.
    */
   void writeRemote(const byte* data, size_t size, size_t from, size_t to) override;
-
-  // NOT IMPLEMENTED
-  HttpImpl(const HttpImpl&) = delete;             //!< Copy constructor
-  HttpImpl& operator=(const HttpImpl&) = delete;  //!< Assignment
 };
 
 HttpIo::HttpImpl::HttpImpl(const std::string& url, size_t blockSize) : Impl(url, blockSize) {

src/preview.cpp

@@ -52,6 +52,9 @@ class Loader {
   //! Virtual destructor.
   virtual ~Loader() = default;
 
+  Loader(const Loader&) = delete;
+  Loader& operator=(const Loader&) = delete;
+
   //! Loader auto pointer
   using UniquePtr = std::unique_ptr<Loader>;
 
@@ -206,10 +209,6 @@ class LoaderTiff : public Loader {
  public:
   //! Constructor
   LoaderTiff(PreviewId id, const Image& image, int parIdx);
-  ~LoaderTiff() override = default;
-
-  LoaderTiff(const LoaderTiff&) = delete;
-  LoaderTiff& operator=(const LoaderTiff&) = delete;
 
   //! Get properties of a preview image with given params
   [[nodiscard]] PreviewProperties getProperties() const override;