Change logic of empty preset

src/book_solver.py

@@ -81,12 +81,8 @@ class BookSolver:
             content = self.access.get_file(
                 file_path=f"{self.access.url}/doc-convert/{self.book_id}/presets")
             self.book_logger.log("\033[4mPreset\033[0m file was received from server.")
-            if len(content) > 3:
             self.preset_path = pathlib.Path(
                 str(self.save_file(content, path_to_save="preset", file_type="json")))
-            else:
-                self.preset_path = "preset/docx_presets.json" if self.book_type == "docx" \
-                    else "preset/epub_presets.json"
         except FileNotFoundError as f_err:
             self.book_logger.log(
                 "Can't get preset file from server.", logging.ERROR)