GraceEditor now clears previously read graphs when calling; fixes T257

src/gui_qt/io/gracereader.py

@@ -45,7 +45,6 @@ class QGraceReader(QtWidgets.QDialog, Ui_Dialog):
 
     def read(self, fname):
         self._reader.parse(fname)
-        print('halio', len(self._reader.graphs))
 
         for graphs in self._reader.graphs:
             item = QtWidgets.QTreeWidgetItem([f'Graph {graphs.idx} (Title "{graphs.get_property("title")}")'])