delete test

app/views/exercises/_test.html.slim

@@ -1,12 +0,0 @@
-- execution_environments = ExecutionEnvironment.where('file_type_id IS NOT NULL').select(:file_type_id, :id)
-- file_types = FileType.where('file_extension IS NOT NULL').select(:file_extension, :id)
-
-= form_for(@exercise, data: {execution_environments: execution_environments, file_types: file_types}, multipart: true) do |f|
-  .form-group
-    = f.label(:description)
-    = f.hidden_field(:description)
-    .form-control.markdown
-
-    = f.pagedown_editor :description
-    /= f.input :description, :as => :pagedown, :input_html => { :preview => true }
-end