purge obsolete symlink setting in fixtures

Author: bastelfreak

.fixtures.yml

@@ -1,6 +1,4 @@
 fixtures:
-  symlinks:
-    gluster: "#{source_dir}"
   repositories:
     apt:    "https://github.com/puppetlabs/puppetlabs-apt.git"
     stdlib: "https://github.com/puppetlabs/puppetlabs-stdlib.git"