Fix Redcarpet version in tests

Author: Nicolas Rodriguez

Diff for: contrib/travis/data/gem_files/rails4.gemfile

@@ -7,10 +7,10 @@ gem 'gitolite-rugged', git: 'https://github.com/jbox-web/gitolite-rugged.git', t
 ## Ruby/Rack Git Smart-HTTP Server Handler (use our own repository because Redmine uses Rails 4.2 and Rack 1.6)
 gem 'gitlab-grack', git: 'https://github.com/jbox-web/grack.git', require: 'grack', branch: 'fix_rails4'
 
-if ENV['USE_SVN'] || ['3.1.2', '3.0.6', '2.6.8'].include?(ENV['REDMINE_VERSION'])
-  gem 'redcarpet', '~> 3.3.2'
-else
+if ['3.1.2', '3.0.6', '2.6.8'].include?(ENV['REDMINE_VERSION'])
   gem 'redcarpet', '~> 3.1.2'
+else
+  gem 'redcarpet', '~> 3.3.2'
 end
 
 # HAML views