Stop recommending wee_alloc

[rparrett]

Where in the docs did you come across this?

https://rustwasm.github.io/docs/book/reference/code-size.html#avoid-allocation-or-switch-to-wee_alloc

Describe what about it does not make sense

Switching to wee_alloc is not good advice.

Why does it not make sense?

wee_alloc is unmaintained and has a serious memory leak bug.

See RUSTSEC-2022-0054 and rustwasm/wee_alloc#106

How could we improve it?

Remove references to wee_alloc.

Perhaps replace them with references to lol_alloc which has been suggested as an alternative.

But IMO this paragraph shouldn't speak about allocator-swapping as a mere tradeoff between speed and size.

[ptdecker]

I'll second this request. GitHub's dependabot flags it as a critical security issue:

https://github.com/ptdecker/the-rust-programming-language/security/dependabot/1

[spencerbart]

I'll third this request