Decide if Wrapping/WrappingOps should be in the prelude

[alexcrichton]

The associated RFC does not mention these two items being in the prelude, and we should probably decide whether or not they should be there.

[alexcrichton]

triage: I-needs-decision, P-backcompat-libs (1.0 beta)

[aturon]

cc @nikomatsakis @brson @huonw

[aturon]

cc @pnkfelix

[pnkfelix]

Decision: We're not going to put these things into the prelude.

So they need to be removed from the prelude.

[alexcrichton]

Resolved in #23549