demangle: remove an old TODO comment
authorAdam Simpkins <simpkins@fb.com>
Fri, 19 Jan 2018 04:42:48 +0000 (20:42 -0800)
committerFacebook Github Bot <facebook-github-bot@users.noreply.github.com>
Fri, 19 Jan 2018 05:04:33 +0000 (21:04 -0800)
commitb0ab09d8df51de1c7040b78742617ef6466b002a
tree9bc987c892bb12145a311964eec10f99f514ee43
parenta578696f04cfa0bd609ea09323153de1aa67e446
demangle: remove an old TODO comment

Summary:
Both the autoconf and cmake build scripts check for
`cplus_demangle_v3_callback()` and define
`FOLLY_HAVE_CPLUS_DEMANGLE_V3_CALLBACK` appropriately.

Reviewed By: meyering

Differential Revision: D6745365

fbshipit-source-id: 3020593c60a21568781b835490b8d64913366cb9
folly/Demangle.cpp