mainwindow: Remove 'Open config in text editor' menu action

Retired because we have a settings tabs now

gui/mainwindow.cpp

@@ -192,12 +192,6 @@ void MainWindow::connectSignals()
 
 			QMessageBox::about(this, "About looqs", html);
 		});
-	connect(ui->menuOpenConfigInTextEditorAction, &QAction::triggered, this,
-			[this](bool checked)
-			{
-				QSettings setting;
-				QDesktopServices::openUrl(setting.fileName());
-			});
 	connect(ui->menuAboutQtAction, &QAction::triggered, this,
 			[this](bool checked) { QMessageBox::aboutQt(this, "About Qt"); });
 	connect(ui->menuSyncIndexAction, &QAction::triggered, this, &MainWindow::startIndexSync);

gui/mainwindow.ui

@@ -496,7 +496,6 @@
     <property name="title">
      <string>looqs</string>
     </property>
-    <addaction name="menuOpenConfigInTextEditorAction"/>
     <addaction name="menuSyncIndexAction"/>
     <addaction name="menuAboutAction"/>
     <addaction name="menuAboutQtAction"/>
@@ -509,11 +508,6 @@
     <string>About</string>
    </property>
   </action>
-  <action name="menuOpenConfigInTextEditorAction">
-   <property name="text">
-    <string>Open config in text editor</string>
-   </property>
-  </action>
   <action name="menuAboutQtAction">
    <property name="text">
     <string>About Qt</string>