diff --git a/core-writer/include/H5Writer.hpp b/core-writer/include/H5Writer.hpp
index f88b415..c74a201 100644
--- a/core-writer/include/H5Writer.hpp
+++ b/core-writer/include/H5Writer.hpp
@@ -46,28 +46,4 @@ class H5Writer
         
 };
 
-class DummyH5Writer : public H5Writer
-{
-    public:
-        DummyH5Writer() : H5Writer("/dev/null", 0, 0, 0) {}
-
-        bool is_file_open() const override
-            { return false; }
-
-        void create_file(const hsize_t frame_chunk=1) override {}
-
-        void close_file() override {}
-
-        void write_data(const std::string& dataset_name, const size_t data_index, const char* data, const std::vector<size_t>& data_shape, 
-            const size_t data_bytes_size, const std::string& data_type, const std::string& endianness) override {}
-
-        H5::H5File& get_h5_file() override;
-
-        bool is_data_for_current_file(const size_t data_index) override
-            { return true; }
-};
-
-std::unique_ptr<H5Writer> get_h5_writer(const std::string& filename, hsize_t frames_per_file=0, 
-    hsize_t initial_dataset_size=1000, hsize_t dataset_increase_step=1000);
-
 #endif
diff --git a/core-writer/src/writer/H5Writer.cpp b/core-writer/src/writer/H5Writer.cpp
index 143c45e..711a920 100644
--- a/core-writer/src/writer/H5Writer.cpp
+++ b/core-writer/src/writer/H5Writer.cpp
@@ -12,15 +12,6 @@ extern "C"
 
 using namespace std;
 
-std::unique_ptr<H5Writer> get_h5_writer(const string& filename, hsize_t frames_per_file, 
-    hsize_t initial_dataset_size, hsize_t dataset_increase_step)
-{
-    if (filename == "/dev/null") {
-        return unique_ptr<H5Writer>(new DummyH5Writer());
-    } else {
-        return unique_ptr<H5Writer>(new H5Writer(filename, frames_per_file, initial_dataset_size, dataset_increase_step));
-    }
-}
 
 H5Writer::H5Writer(const std::string& filename, hsize_t frames_per_file, hsize_t initial_dataset_size, 
     hsize_t dataset_increase_step) :
@@ -321,14 +312,3 @@ H5::H5File& H5Writer::get_h5_file()
 {
     return file;
 }
-
-H5::H5File& DummyH5Writer::get_h5_file()
-{
-    stringstream error_message;
-    using namespace date;
-    error_message << "[" << std::chrono::system_clock::now() << "]";
-    error_message << "Cannot get the H5 file with the dummy writer." << endl;
-
-    throw runtime_error(error_message.str());
-};
-