Remove gibfahn from TSC mailing list

Refs: nodejs/node#23238

Author: gibfahn

iojs.org/aliases.json

@@ -10,7 +10,6 @@
       "fishrock123@rocketmail.com",
       "franziska.hinkelmann@gmail.com",
       "gabriel.schulhof@intel.com",
-      "gibfahn@gmail.com",
       "jasnell@gmail.com",
       "joyeec9h3@gmail.com",
       "matteo.collina@gmail.com",