Remove contacts menu bar extra

Co-Authored-By: Antonio Scandurra <antonio@zed.dev>

crates/theme/src/theme.rs

@@ -19,7 +19,6 @@ pub struct Theme {
     pub workspace: Workspace,
     pub context_menu: ContextMenu,
     pub chat_panel: ChatPanel,
-    pub contacts_popover: ContactsPopover,
     pub contacts_panel: ContactsPanel,
     pub contact_finder: ContactFinder,
     pub project_panel: ProjectPanel,
@@ -325,11 +324,6 @@ pub struct CommandPalette {
     pub keystroke_spacing: f32,
 }
 
-#[derive(Deserialize, Default)]
-pub struct ContactsPopover {
-    pub background: Color,
-}
-
 #[derive(Deserialize, Default)]
 pub struct ContactsPanel {
     #[serde(flatten)]