Revert reference-types support

[chipshort]

Mostly reverts #2289 (except for the cosmwasm-check CI change).
We have to revert this because wasmer does not support reference types for singlepass yet, so allowing them in the validation can be used to cause a panic while compiling the module.

[chipshort]

@Mergifyio backport main

[mergify]

backport main

✅ Backports have been created

• #2316 Revert reference-types support (backport #2311) has been created for branch main but encountered conflicts

[aumetra]

Really unfortunate

[chipshort]

Yup, definitely. The good thing is that we made them aware of it and they are prioritizing this for us now.

[webmaster128]

Does this also mean we have no Rust 1.82+ support for compiling contracts to Wasm any time soon?

[chipshort]

Does this also mean we have no Rust 1.82+ support for compiling contracts to Wasm any time soon?

Unfortunately, yes. We need to wait for wasmer to actually support the reference types.
One other thing we could do is figuring out why exactly the 1.82 wasms require the reference-types and allow them just in that case (if wasmer even supports that case). We would have to filter out everything else in the Gatekeeper and the static analysis code.
But that would require some more research and work for what is just a workaround at the end, so I'm not sure if it's worth it.