Rust

Remove debug-assert triggered by `with_layer_id/dnd_drag_source` #12905

Job	Run time
Format + check + test	2m 52s
Check wasm32 + wasm-bindgen	2m 20s
Check wasm32+atomics	1m 27s
android	22s
cargo-deny aarch64-apple-darwin	39s
cargo-deny aarch64-linux-android	35s
cargo-deny i686-pc-windows-gnu	39s
cargo-deny i686-pc-windows-msvc	37s
cargo-deny i686-unknown-linux-gnu	35s
cargo-deny wasm32-unknown-unknown	38s
cargo-deny x86_64-apple-darwin	37s
cargo-deny x86_64-pc-windows-gnu	42s
cargo-deny x86_64-pc-windows-msvc	39s
cargo-deny x86_64-unknown-linux-gnu	37s
cargo-deny x86_64-unknown-linux-musl	35s
cargo-deny x86_64-unknown-redox	42s
ios	20s
Check Windows	1m 22s
	16m 18s

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