Temporary remove integration with bevy-hikari

Required to migrate to Bevy 0.7. Current the plugin can't
work with 0.7 because of this upstream issue:
bevyengine/bevy#4507

Cargo.toml

@@ -10,7 +10,6 @@ bevy = { version = "0.6", default-features = false }
 bevy_atmosphere = { version = "0.2", optional = true }
 bevy_egui = { version = "0.12", features = ["multi_threaded"], optional = true }
 bevy-inspector-egui = { version = "0.9", optional = true }
-bevy-hikari = "0.1"
 heron = { version = "2.1", features = ["3d"] }
 leafwing_input_manager = { git = "https://github.com/Leafwing-Studios/leafwing_input_manager", branch = "dev", default-features = false }
 clap = { version = "3.1", features = ["derive"] }

src/core/character/mod.rs

@@ -21,7 +21,6 @@
 pub(crate) mod hero;
 
 use bevy::prelude::*;
-use bevy_hikari::NotGiCaster;
 use derive_more::{AddAssign, From, SubAssign};
 use heron::{CollisionLayers, CollisionShape, RigidBody, RotationConstraints, Velocity};
 use leafwing_input_manager::prelude::ActionState;
@@ -50,7 +49,6 @@ pub(super) struct CharacterBundle {
     collision_layers: CollisionLayers,
     velocity: Velocity,
     action_state: ActionState<ControlAction>,
-    not_gi_caster: NotGiCaster,
 
     #[bundle]
     pbr: PbrBundle,
@@ -71,7 +69,6 @@ impl Default for CharacterBundle {
                 .with_group(CollisionLayer::Character),
             velocity: Velocity::default(),
             action_state: ActionState::default(),
-            not_gi_caster: NotGiCaster,
             pbr: PbrBundle::default(),
         }
     }

src/core/orbit_camera.rs

@@ -24,7 +24,6 @@ use bevy::{
     render::camera::{ActiveCameras, CameraPlugin},
     transform::TransformSystem,
 };
-use bevy_hikari::Volume;
 use derive_more::{Deref, DerefMut, From};
 use heron::PhysicsSystem;
 
@@ -110,7 +109,6 @@ struct OrbitCameraBundle {
     name: Name,
     camera_target: CameraTarget,
     orbit_rotation: OrbitRotation,
-    volume: Volume,
 
     #[bundle]
     camera: PerspectiveCameraBundle,
@@ -122,7 +120,6 @@ impl OrbitCameraBundle {
             name: "Orbit Camera".into(),
             camera_target,
             orbit_rotation: OrbitRotation::default(),
-            volume: Volume::new(Vec3::new(0.0, -25.0, -25.0), Vec3::new(50.0, 25.0, 25.0)),
             camera: PerspectiveCameraBundle::default(),
         }
     }

src/core/settings.rs

@@ -19,7 +19,6 @@
  */
 
 use bevy::prelude::*;
-use bevy_hikari::GiConfig;
 use derive_more::Display;
 use leafwing_input_manager::{prelude::InputMap, Actionlike};
 use serde::{Deserialize, Serialize};
@@ -52,9 +51,6 @@ fn apply_video_settings_system(
         commands.insert_resource(Msaa {
             samples: settings.video.msaa,
         });
-        commands.insert_resource(GiConfig {
-            enabled: settings.video.global_illumination,
-        });
     }
 }
 
@@ -162,15 +158,11 @@ impl Settings {
 #[serde(default)]
 pub(crate) struct VideoSettings {
     pub(crate) msaa: u32,
-    pub(crate) global_illumination: bool,
 }
 
 impl Default for VideoSettings {
     fn default() -> Self {
-        Self {
-            msaa: 1,
-            global_illumination: true,
-        }
+        Self { msaa: 1 }
     }
 }
 
@@ -279,7 +271,6 @@ mod tests {
         );
 
         settings.video.msaa += 1;
-        settings.video.global_illumination = !settings.video.global_illumination;
 
         let mut apply_events = app
             .world
@@ -295,11 +286,6 @@ mod tests {
             settings.video.msaa, msaa.samples,
             "MSAA setting should be updated on apply event"
         );
-        let gi_config = app.world.get_resource::<GiConfig>().unwrap();
-        assert_eq!(
-            settings.video.global_illumination, gi_config.enabled,
-            "Global illumination setting should be updated on apply event"
-        );
     }
 
     #[test]

src/main.rs

@@ -36,7 +36,6 @@ use crate::core::CorePlugin;
 use {
     crate::core::settings::ControlAction,
     bevy_atmosphere::AtmospherePlugin,
-    bevy_hikari::VoxelConeTracingPlugin,
     leafwing_input_manager::prelude::InputManagerPlugin,
     ui::{UiAction, UiPlugin},
 };
@@ -63,7 +62,6 @@ fn main() {
             dynamic: false,
             sky_radius: 100.0,
         })
-        .add_plugin(VoxelConeTracingPlugin::default())
         .add_plugin(InputManagerPlugin::<ControlAction>::default())
         .add_plugin(InputManagerPlugin::<UiAction>::default())
         .add_plugin(UiPlugin);

src/ui/setting_menu.rs

@@ -127,10 +127,6 @@ fn show_video_settings(ui: &mut Ui, video_settings: &mut VideoSettings) {
             ui.selectable_value(&mut video_settings.msaa, 1, 1.to_string());
             ui.selectable_value(&mut video_settings.msaa, 4, 4.to_string());
         });
-    ui.checkbox(
-        &mut video_settings.global_illumination,
-        "Global illumination",
-    );
 }
 
 fn show_control_settings(