refactor: remove unused ocaml function (#11316) #29585

Job	Run time
Build microbenchmarks	2m 30s
Create local opam switch (macos-latest, 5)	6m 41s
Coq 8.16.1	7m 24s
Create local opam switch (macos-latest, 4.14)	6m 31s
Build (macos-latest, 5.1.x)	14m 54s
Create local opam switch (ubuntu-latest, 5)	4m 54s
Build (ubuntu-latest, 5.1.x)	8m 52s
Documentation	54s
Format	1m 4s
Build (ocaml-variants.5.4.0+trunk, ubuntu-latest, true)	1m 27s
Create local opam switch (ubuntu-latest, 4.14)	4m 51s
Build (4.14.x, ubuntu-latest, true)	1m 32s
Build monorepo benchmark docker image	3m 54s
Nix (macos-latest)	2m 34s
Build (4.14.x, macos-latest, true)	2m 32s
Build (5.1.x, macos-13, true)	4m 25s
Nix (ubuntu-latest)	53s
Wasm_of_ocaml	10m 28s
Build (ocaml-base-compiler.4.14.2,system-msvc, windows-latest)	33s
Build (ocaml-base-compiler.5.1.1,system-mingw, windows-latest)	10m 0s
Build (4.08.x, ubuntu-latest, true)	1m 33s
Build (4.04.x, ubuntu-latest, true, true)	4m 35s
Build (4.02.x, ubuntu-latest, true)	3m 51s
	1h 46m 52s

Provide feedback