Remove AUTHORS file

cgit has stats about authors, should be good enough. Less stuff
to maintain, yay!

AUTHORS

@@ -1,40 +0,0 @@
-Ranch is available thanks to the work of:
-
-Loïc Hoguin
-James Fish
-Andrew Majorov
-Ransom Richardson
-Fred Hebert
-Geoff Cant
-Klaus Trainer
-josh rotenberg
-0x00F6
-Alexander Zhuravlev
-Alexandru Munteanu
-Alexey Lebedeff
-Ali Sabil
-Andre Graf
-Andrew Thompson
-Jihyun Yu
-Maas-Maarten Zeeman
-Marc Worrell
-Slava Yurin
-Stéphane Wirtel
-Victor
-Xiao Jia
-developerworks
-ferigis
-
-The Ranch code was initially part of Cowboy. Before it was
-split into a separate project, the following people worked
-on the code that then became Ranch:
-
-Loïc Hoguin
-Ali Sabil
-Andrew Thompson
-DeadZen
-Hunter Morris
-Jesper Louis Andersen
-Paul Oliver
-Roberto Ostinelli
-Steven Gravell