Remove unnecesary update.label event

app/assets/javascripts/gl_dropdown.js.coffee

@@ -217,7 +217,6 @@ class GitLabDropdown
     @dropdown.on "shown.bs.dropdown", @opened
     @dropdown.on "hidden.bs.dropdown", @hidden
-    $(@el).on "update.label", @updateLabel
     @dropdown.on "click", ".dropdown-menu, .dropdown-menu-close", @shouldPropagate
     @dropdown.on 'keyup', (e) =>
       if e.which is 27 # Escape key

app/assets/javascripts/issuable.js.coffee

@@ -52,7 +52,6 @@ issuable_created = false
         # Submit the form to get new data
         Issuable.filterResults $('.filter-form')
-        $('.js-label-select').trigger('update.label')
   filterResults: (form) =>
     formData = form.serialize()