Gemfile: remove rake

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@10805 e93f8b46-1217-0410-a6f0-8f06a7374b81

Gemfile

@@ -6,7 +6,6 @@ gem "i18n", "~> 0.6.0"
 gem "coderay", "~> 1.0.6"
 gem "fastercsv", "~> 1.5.0", :platforms => [:mri_18, :mingw_18, :jruby]
 gem "builder", "3.0.0"
-gem "rake"
 
 # Optional gem for LDAP authentication
 group :ldap do