Remove unneeded parent from function call

src/mainwindow.cpp

@@ -166,9 +166,9 @@ public:
     void editKeybindings()
     {
 #if KXMLGUI_VERSION < QT_VERSION_CHECK(5,84,0)
-        KShortcutsDialog::configure(q->actionCollection(), KShortcutsEditor::LetterShortcutsAllowed, this);
+        KShortcutsDialog::configure(q->actionCollection(), KShortcutsEditor::LetterShortcutsAllowed);
 #else
-        KShortcutsDialog::showDialog(q->actionCollection(),  KShortcutsEditor::LetterShortcutsAllowed, true /*isModal*/, this);
+        KShortcutsDialog::showDialog(q->actionCollection(),  KShortcutsEditor::LetterShortcutsAllowed, true /*isModal*/);
 #endif
         updateSearchBarClickMessage();
     }