[wasm] Don't create hybrid .dat for WASM.

[ilonatommy]

Connected PRs:
dotnet/sdk#45412
dotnet/runtime#110526
dotnet/runtime#110534
dotnet/runtime#110567

In the process of disabling HybridGlobalization feature from WASM, we should remove the icu-transport hybrid package. It fixes the error from the comment:
dotnet/runtime#110567 (comment)

Changes:

• delete the hybrid .json file from filters
• skip building icudt_hybrid.dat for WASM but keep it for iOS

[akoeplinger]

Actually I think we can remove it from iOS as well. It uses Hybrid Globalization by default now, which in the iOS case means it only uses ICU from the system instead of our own fork.

[akoeplinger]

Ah, forgot that I even disabled building this repo for iOS so it's definitely not needed anymore :)

[ilonatommy]

Actually I think we can remove it from iOS as well. It uses Hybrid Globalization by default now, which in the iOS case means it only uses ICU from the system instead of our own fork.

but that feature can be disabled and iOS can run with HybridGlobalization=false if users don't agree with its side effects. Why would we stop shipping ICU for them?

[akoeplinger]

We've removed that option in .net 9, setting it to false does nothing for iOS anymore.

[akoeplinger]

to be clear: the side-effects for iOS aren't as dramatic since it uses the same ICU data that Apple ships with iOS, basically like any other native app would