Added by nobu (Nobuyoshi Nakada) 10 months ago.
Updated 9 months ago.
As mathn is deprecated, canonicalization for it also should be removed, I think.
Is duplicate of
I'm +1 to this. Can we remove it without approval from Matz?
I merged this at https://github.com/ruby/ruby/commit/b958e2add835d62c0a62edaf9a23ecbbd70a3635
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