Removed remaining cganglia reference (Azure#77)

Removed remaining cganglia reference

Author: emilylo3

specs/default/chef/site-cookbooks/pbspro/metadata.rb

@@ -8,5 +8,5 @@
 long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))
 version          "2.0.24"
 depends          "tandem"
-%w{ cganglia cshared cuser cyclecloud }.each {|c| depends c}
+%w{ cshared cuser cyclecloud }.each {|c| depends c}