Simpler attempt to fix wasm_of_ocaml #703

Job	Run time
docker-master	1h 24m 25s
publish-standalone-dry-run	17s
test-standalone (master, dev, default)	1m 31s
build-wasm-of-ocaml (master, 4.14.1)	2m 55s
build-js-of-ocaml (master, 4.11.1)	12m 23s
generated-files (master)	23m 57s
validate-docker-master	2m 22s
standalone-haskell (master)	48m 17s
test-amd64	2h 18m 49s
deploy-js-wasm-of-ocaml	0s
docker-check-all	5s
	5h 15m 1s

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