fix: remvoe extra async_channel dependency

Author: NthTensor

crates/bevy_tasks/Cargo.toml

@@ -72,7 +72,6 @@ crossbeam-queue = { version = "0.3", default-features = false, features = [
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 wasm-bindgen-futures = { version = "0.4", optional = true }
 pin-project = { version = "1", optional = true }
-async-channel = { version = "2.5.0", optional = true }
 
 [target.'cfg(not(all(target_has_atomic = "8", target_has_atomic = "16", target_has_atomic = "32", target_has_atomic = "64", target_has_atomic = "ptr")))'.dependencies]
 async-task = { version = "4.4.0", default-features = false, features = [