Rollup merge of rust-lang#43846 - frewsxcv:frewsxcv-mailmap, r=Mark-S…

…imulacrum

Remove my mailmap entry.

I no longer want this mailmap entry for myself.

.mailmap

@@ -52,7 +52,6 @@ Chris Pressey <cpressey@gmail.com>
 Chris Thorn <chris@thorn.co> Chris Thorn <thorn@thoughtbot.com>
 Clark Gaebel <cg.wowus.cg@gmail.com> <cgaebel@mozilla.com>
 Clinton Ryan <clint.ryan3@gmail.com>
-Corey Farwell <coreyf+rust@rwell.org> Corey Farwell <coreyf@rwell.org>
 Corey Richardson <corey@octayn.net> Elaine "See More" Nemo <corey@octayn.net>
 Cyryl Płotnicki <cyplo@cyplo.net>
 Damien Schoof <damien.schoof@gmail.com>