Remove unused function file_exists_or_set_null
Merge branch 'master' of github.com:pantheon-systems/fusedav into Mar19RemoveUnusedFunction
Merge branch 'master' of github.com:pantheon-systems/fusedav into Mar19RemoveUnusedFunction
Merge pull request #32 from pantheon-systems/Mar19RemoveUnusedFunction

Remove unused function file_exists_or_set_null