remove deprecated mod

src/browser/main/tab/page/navigation/history/widget.rs

@@ -1,27 +0,0 @@
-use gtk::prelude::BoxExt;
-
-pub struct History {
-    gtk: gtk::Box,
-}
-
-impl History {
-    // Construct
-    pub fn new(back: &gtk::Button, forward: &gtk::Button) -> History {
-        let gtk = gtk::Box::builder()
-            .orientation(gtk::Orientation::Horizontal)
-            .css_classes([
-                "linked", // merge childs
-            ])
-            .build();
-
-        gtk.append(back);
-        gtk.append(forward);
-
-        Self { gtk }
-    }
-
-    // Getters
-    pub fn gtk(&self) -> &gtk::Box {
-        &self.gtk
-    }
-}