Fix nightly clippy warnings

Author: bilelmoussaoui

examples/basic_subclass/simple_application/mod.rs

@@ -1,6 +1,5 @@
 mod imp;
 
-use gio::ApplicationFlags;
 use gtk::{gio, glib};
 
 glib::wrapper! {
@@ -12,8 +11,7 @@ impl SimpleApplication {
     #[allow(clippy::new_without_default)]
     pub fn new() -> Self {
         glib::Object::builder()
-            .property("application-id", &"org.gtk-rs.SimpleApplication")
-            .property("flags", &ApplicationFlags::empty())
+            .property("application-id", "org.gtk-rs.SimpleApplication")
             .build()
     }
 }

examples/list_box_model/row_data/mod.rs

@@ -19,8 +19,8 @@ glib::wrapper! {
 impl RowData {
     pub fn new(name: &str, count: u32) -> RowData {
         glib::Object::builder()
-            .property("name", &name)
-            .property("count", &count)
+            .property("name", name)
+            .property("count", count)
             .build()
     }
 }

gtk/src/image.rs

@@ -29,7 +29,7 @@ impl<O: IsA<Image>> ImageExtManual for O {
 
     fn set_icon_size(&self, icon_size: IconSize) {
         self.as_ref()
-            .set_property("icon-size", &icon_size.into_glib());
+            .set_property("icon-size", icon_size.into_glib());
     }
 
     fn connect_icon_size_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {

gtk/src/radio_tool_button.rs

@@ -28,7 +28,7 @@ impl RadioToolButton {
     }
 
     pub fn join_group(&self, group: Option<&RadioToolButton>) {
-        self.set_property("group", &group);
+        self.set_property("group", group);
     }
 }
 

gtk/src/stack_switcher.rs

@@ -35,7 +35,7 @@ impl<O: IsA<StackSwitcher>> StackSwitcherExtManual for O {
 
     fn set_icon_size(&self, icon_size: IconSize) {
         self.as_ref()
-            .set_property("icon-size", &icon_size.into_glib());
+            .set_property("icon-size", icon_size.into_glib());
     }
 
     fn connect_icon_size_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {