Remove @Beta from Futures.getChecked (or deprecate and remove)

[cpovirk]

I admit that I included this method in part because I felt bad having only Futures.getUnchecked, but I feel a little sad about it, especially its use of reflection, which is Android/Proguard-hostile. That said, would we care enough to delete it?

(One crazy possibility is to supply a way to codegen compile-time equivalents to the method.)

[claudivanmoreira]

Hello @cpovirk , is anyone solving this issue or can I get her to make the adjustment?

[MorrisLaw]

@ddunig2 check this one out

[kluever]

This is now fixed.