Fix tests

test/helper.rb

@@ -90,15 +90,4 @@ def context(*args, &block)
   klass.class_eval &block
 end
 
-$contexts = []
-
-# Commit file to wiki, overwriting previous versions of that file
-def commit_test_file(wiki, dir, filename, ext, content)
-  committer = Gollum::Committer.new(wiki, :message => "Added testfile", :parent  => wiki.repo.head.commit)
-  committer.add_to_index(dir, filename, ext, content, true)
-    committer.after_commit do |committer, sha|
-      wiki.clear_cache
-      committer.update_working_dir(dir, filename, ext)
-    end
-  committer.commit
-end
+$contexts = []