Removed world cell from places where split multable access is not needed (bevyengine#5167)

Fixes bevyengine#5109.

Author: SarthakSingh31

crates/bevy_pbr/src/render/light.rs

@@ -217,7 +217,6 @@ pub struct ShadowPipeline {
 // TODO: this pattern for initializing the shaders / pipeline isn't ideal. this should be handled by the asset system
 impl FromWorld for ShadowPipeline {
     fn from_world(world: &mut World) -> Self {
-        let world = world.cell();
         let render_device = world.resource::<RenderDevice>();
 
         let view_layout = render_device.create_bind_group_layout(&BindGroupLayoutDescriptor {

crates/bevy_sprite/src/render/mod.rs

@@ -38,7 +38,6 @@ pub struct SpritePipeline {
 
 impl FromWorld for SpritePipeline {
     fn from_world(world: &mut World) -> Self {
-        let world = world.cell();
         let render_device = world.resource::<RenderDevice>();
 
         let view_layout = render_device.create_bind_group_layout(&BindGroupLayoutDescriptor {

crates/bevy_ui/src/render/pipeline.rs

@@ -10,7 +10,6 @@ pub struct UiPipeline {
 
 impl FromWorld for UiPipeline {
     fn from_world(world: &mut World) -> Self {
-        let world = world.cell();
         let render_device = world.resource::<RenderDevice>();
 
         let view_layout = render_device.create_bind_group_layout(&BindGroupLayoutDescriptor {

examples/shader/animate_shader.rs

@@ -189,11 +189,10 @@ pub struct CustomPipeline {
 
 impl FromWorld for CustomPipeline {
     fn from_world(world: &mut World) -> Self {
-        let world = world.cell();
         let asset_server = world.resource::<AssetServer>();
         let shader = asset_server.load("shaders/animate_shader.wgsl");
 
-        let render_device = world.resource_mut::<RenderDevice>();
+        let render_device = world.resource::<RenderDevice>();
         let time_bind_group_layout =
             render_device.create_bind_group_layout(&BindGroupLayoutDescriptor {
                 label: Some("time bind group"),

examples/shader/shader_instancing.rs

@@ -168,7 +168,6 @@ pub struct CustomPipeline {
 
 impl FromWorld for CustomPipeline {
     fn from_world(world: &mut World) -> Self {
-        let world = world.cell();
         let asset_server = world.resource::<AssetServer>();
         asset_server.watch_for_changes().unwrap();
         let shader = asset_server.load("shaders/instancing.wgsl");