remove verbose/very_verbose from Rakefile, they don't exist anymore.

Thanks to Stephen Loo for catching this.

Author: hone

lib/resque/tasks.rb

@@ -12,8 +12,6 @@
 
     begin
       worker = Resque::Worker.new(*queues)
-      worker.verbose = ENV['LOGGING'] || ENV['VERBOSE']
-      worker.very_verbose = ENV['VVERBOSE']
       worker.term_timeout = ENV['RESQUE_TERM_TIMEOUT'] || 4.0
     rescue Resque::NoQueueError
       abort "set QUEUE env var, e.g. $ QUEUE=critical,high rake resque:work"