Reverts r14672, test broken (#1159).

git-svn-id: http://svn.redmine.org/redmine/trunk@14673 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue_query.rb

@@ -212,7 +212,6 @@ class IssueQuery < Query
     end
 
     add_available_filter "subject", :type => :text
-    add_available_filter "description", :type => :text
     add_available_filter "created_on", :type => :date_past
     add_available_filter "updated_on", :type => :date_past
     add_available_filter "closed_on", :type => :date_past