Update code to remove no longer needed changes

app/models/ci/trigger.rb

@@ -14,7 +14,7 @@ module Ci
 
     before_validation :set_default_values
 
-    accepts_nested_attributes_for :trigger_schedule, allow_destroy: true
+    accepts_nested_attributes_for :trigger_schedule
 
     def set_default_values
       self.token = SecureRandom.hex(15) if self.token.blank?

app/views/projects/triggers/_form.html.haml

@@ -31,9 +31,3 @@
           = schedule_fields.text_field :ref, class: "form-control", title: 'Branch or tag is required.', placeholder: "master"
           .help-block Existing branch name, tag
   = f.submit btn_text, class: "btn btn-save"
-
-
-:javascript
-  var availableRefs = #{@project.repository.ref_names.to_json};
-
-  new NewBranchForm($('.js-new-pipeline-form'), availableRefs)