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);
     
     // Custom mode

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">