Remove unused binding

Author: Jack251970

Flow.Launcher/SettingWindow.xaml

@@ -13,7 +13,6 @@
     MinHeight="600"
     d:DataContext="{d:DesignInstance vm:SettingWindowViewModel}"
     Closed="OnClosed"
-    FontFamily="{Binding Settings.SettingWindowFont, Mode=TwoWay}"
     Icon="Images\app.ico"
     Left="{Binding SettingWindowLeft, Mode=TwoWay}"
     Loaded="OnLoaded"