Remove class wrap for constructors in Rust exports (#3562) #1336

Job	Run time
Check	1m 57s
build_benchmarks	1m 23s
build_nightly	3m 30s
build_examples	4m 26s
Verify that web-sys is compiled correctly	1m 39s
Clippy	8m 42s
dist_linux_aarch64_gnu	4m 20s
dist_linux_x86_64_musl	3m 48s
dist_macos_aarch64	3m 11s
dist_macos_x86_64	3m 51s
dist_windows	6m 45s
doc_api	1m 47s
doc_book	13s
Rustfmt	19s
Build and test the deno example	1m 34s
Run js-sys crate tests	3m 18s
Run native tests	3m 57s
Run wasm-bindgen crate tests with multithreading enabled	2m 0s
Test TypeScript output of wasm-bindgen	2m 0s
Run UI compile-fail tests	3m 2s
Run wasm-bindgen crate tests (unix)	7m 55s
Run web-sys crate tests	8m 2s
Run wasm-bindgen-webidl crate tests	3m 21s
test_examples	4m 5s
deploy	1m 29s
	1h 26m 34s

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