remove all sudo references from CI build script

Signed-off-by: Jeremy Kemper <jeremy@bitsweat.net>

ci/ci_build.rb

@@ -18,14 +18,8 @@ def rake(*tasks)
 puts "[CruiseControl] Rails build"
 build_results = {}
 
-# Install rubygems-update, so 'gem update --system' in cruise_config.rb auto-installs it on next build.
-# This is how you can auto-update rubygems without logging in to CI system
-rubygems_install_cmd = "sudo gem install rubygems-update -v 1.3.5 --no-ri --no-rdoc"
-puts "Running command: #{rubygems_install_cmd}"
-build_results[:install_rubygems_update] = system rubygems_install_cmd
-
 # Install required version of bundler.
-bundler_install_cmd = "sudo gem install bundler -v 0.9.3 --no-ri --no-rdoc"
+bundler_install_cmd = "gem install bundler -v 0.9.3 --no-ri --no-rdoc"
 puts "Running command: #{bundler_install_cmd}"
 build_results[:install_bundler] = system bundler_install_cmd