Revert "Store the real/final output filename so that we can notify it correctly to the user"

This reverts commit d7aae3a982.

volatility3/cli/__init__.py

@@ -790,8 +790,8 @@ class CommandLine:
                     return None
 
                 self._file.close()
-                self._output_filename = self._get_final_filename()
-                os.rename(self._name, self._output_filename)
+                output_filename = self._get_final_filename()
+                os.rename(self._name, output_filename)
 
         if direct:
             return CLIDirectFileHandler

volatility3/framework/plugins/layerwriter.py

@@ -115,7 +115,6 @@ class LayerWriter(plugins.PluginInterface):
                             progress_callback=self._progress_callback,
                         )
                         file_handle.close()
-                        output_name = file_handle._output_filename
                     except IOError as excp:
                         yield 0, (f"Layer cannot be written to {output_name}: {excp}",)