Rollup merge of #24435 - killercup:patch-9, r=steveklabnik
Rollup merge of #24435 - killercup:patch-9, r=steveklabnik

The link works on the `std/ptr/index.html` docs page, but not the `std/primitive.pointer.html` page. Instead of leaving it half-broken, it is removed.

I tried fixing this in #24432, but @alexcrichton mentioned that this doc string was used in two places (with different base paths unfortunately).

r? @alexcrichton 

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