Remove trailing newline from unicorn.rb.example

[ci skip]

config/unicorn.rb.example

@@ -137,4 +137,3 @@ after_fork do |server, worker|
   # addr = "127.0.0.1:#{9293 + worker.nr}"
   # server.listen(addr, :tries => -1, :delay => 5, :tcp_nopush => true)
 end
-