Remove unused query param (#18924)

# Objective

Was copying off `bevy_ui`'s homework writing a picking backend and
noticed the `Has<IsDefaultPickingCamera>` is not used anywhere.

## Testing

Ran a random example.

This shouldn't cause any behavioral changes at all because the
component/archetype access/filter flags should be the same. `Has<X>`
doesn't affect access since it doesn't actually read or write anything,
and it doesn't affect matched archetypes either. Can't think of another
reason any behavior would change.

Author: jnhyatt

crates/bevy_ui/src/picking_backend.rs

@@ -104,12 +104,7 @@ pub struct NodeQuery {
 /// we need for determining picking.
 pub fn ui_picking(
     pointers: Query<(&PointerId, &PointerLocation)>,
-    camera_query: Query<(
-        Entity,
-        &Camera,
-        Has<IsDefaultUiCamera>,
-        Has<UiPickingCamera>,
-    )>,
+    camera_query: Query<(Entity, &Camera, Has<UiPickingCamera>)>,
     primary_window: Query<Entity, With<PrimaryWindow>>,
     settings: Res<UiPickingSettings>,
     ui_stack: Res<UiStack>,
@@ -128,8 +123,8 @@ pub fn ui_picking(
         // cameras. We want to ensure we return all cameras with a matching target.
         for camera in camera_query
             .iter()
-            .filter(|(_, _, _, cam_can_pick)| !settings.require_markers || *cam_can_pick)
-            .map(|(entity, camera, _, _)| {
+            .filter(|(_, _, cam_can_pick)| !settings.require_markers || *cam_can_pick)
+            .map(|(entity, camera, _)| {
                 (
                     entity,
                     camera.target.normalize(primary_window.single().ok()),
@@ -139,7 +134,7 @@ pub fn ui_picking(
             .filter(|(_entity, target)| target == &pointer_location.target)
             .map(|(cam_entity, _target)| cam_entity)
         {
-            let Ok((_, camera_data, _, _)) = camera_query.get(camera) else {
+            let Ok((_, camera_data, _)) = camera_query.get(camera) else {
                 continue;
             };
             let mut pointer_pos =
@@ -260,7 +255,7 @@ pub fn ui_picking(
 
         let order = camera_query
             .get(*camera)
-            .map(|(_, cam, _, _)| cam.order)
+            .map(|(_, cam, _)| cam.order)
             .unwrap_or_default() as f32
             + 0.5; // bevy ui can run on any camera, it's a special case