remove the multi-theme system

crates/workspace/src/panels/greeter.rs

@@ -8,7 +8,6 @@ use ui::button::{Button, ButtonVariants};
 use ui::dock::{Panel, PanelEvent};
 use ui::{Icon, IconName, Sizable, StyledExt, h_flex, v_flex};
 
-use crate::Command;
 use crate::dialogs::profile;
 
 pub fn init(window: &mut Window, cx: &mut App) -> Entity<GreeterPanel> {
@@ -138,19 +137,6 @@ impl Render for GreeterPanel {
                                             .on_click(cx.listener(move |this, _, window, cx| {
                                                 this.open_profile(window, cx)
                                             })),
-                                    )
-                                    .child(
-                                        Button::new("theme")
-                                            .icon(Icon::new(IconName::Moon))
-                                            .label("Change theme")
-                                            .ghost()
-                                            .small()
-                                            .on_click(cx.listener(move |_, _, window, cx| {
-                                                window.dispatch_action(
-                                                    Box::new(Command::ToggleTheme),
-                                                    cx,
-                                                );
-                                            })),
                                     ),
                             ),
                     ),