Remove example causing circular dependency in bevy_platform_support (#18390)

# Objective

- Alternative to #18389

## Solution

- Remove improper example.

Co-authored-by: François Mockers <[email protected]>

Author: bushrat011899

crates/bevy_platform_support/Cargo.toml

@@ -58,9 +58,6 @@ hashbrown = { version = "0.15.1", features = [
   "raw-entry",
 ], optional = true, default-features = false }
 
-[dev-dependencies]
-bevy_ecs = { path = "../bevy_ecs", version = "0.16.0-dev" }
-
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 web-time = { version = "1.1", default-features = false, optional = true }
 getrandom = { version = "0.2.0", default-features = false, optional = true, features = [

crates/bevy_platform_support/src/collections.rs

@@ -5,23 +5,6 @@
 //! Note that due to the implementation details of [`hashbrown`], [`HashMap::new`] is only implemented for `HashMap<K, V, RandomState>`.
 //! Whereas, Bevy exports `HashMap<K, V, FixedHasher>` as its default [`HashMap`] type, meaning [`HashMap::new`] will typically fail.
 //! To bypass this issue, use [`HashMap::default`] instead.
-//!
-//! ```
-//! # use bevy_ecs::component::Component;
-//! # use bevy_ecs::system::Commands;
-//! # use bevy_platform_support::collections::HashMap;
-//!
-//! #[derive(Component)]
-//! struct MyComponent {
-//!     map: HashMap<String, String>
-//! }
-//!
-//! fn my_system(mut commands: Commands) {
-//!     commands.spawn(MyComponent {
-//!         map: HashMap::default(),
-//!     });
-//! }
-//! ```
 
 pub use hash_map::HashMap;
 pub use hash_set::HashSet;