Remove title bar on/off support

src/ui/SettingsDialog.cc

@@ -70,10 +70,6 @@ _ui(new Ui::SettingsDialog)
     _ui->lowPowerCheckBox->setChecked(_mainWindow->lowPowerModeEnabled());
     connect(_ui->lowPowerCheckBox, SIGNAL(clicked(bool)), _mainWindow, SLOT(enableLowPowerMode(bool)));
     
-    // Dock widget title bars
-    _ui->titleBarCheckBox->setChecked(_mainWindow->dockWidgetTitleBarsEnabled());
-    connect(_ui->titleBarCheckBox,SIGNAL(clicked(bool)),_mainWindow,SLOT(enableDockWidgetTitleBars(bool)));
-    
     connect(_ui->deleteSettings, &QAbstractButton::toggled, this, &SettingsDialog::_deleteSettingsToggled);
     
     // Application color style

src/ui/SettingsDialog.ui

@@ -62,16 +62,6 @@
          </property>
         </widget>
        </item>
-       <item>
-        <widget class="QCheckBox" name="titleBarCheckBox">
-         <property name="text">
-          <string>Show Docked Widget title bars when NOT in advanced Mode.</string>
-         </property>
-         <property name="checked">
-          <bool>false</bool>
-         </property>
-        </widget>
-       </item>
        <item>
         <widget class="QCheckBox" name="promptFlightDataSave">
          <property name="text">