removed bundler usage in topology

examples/simple/redis_word_count_topology.rb

@@ -1,6 +1,5 @@
-require 'rubygems'      # required for remote cluster exec where TopolyLauncher + require rubygems is not called
-require 'red_storm'     # must be required before bundler for environment setup and after rubygems
-require 'bundler/setup'
+require 'rubygems'
+require 'red_storm'
 
 require 'redis'
 require 'thread'