Removed additional dropdown list animations

app/assets/stylesheets/framework/animations.scss

@@ -120,6 +120,9 @@ a {
   @include transition(background-color, box-shadow);
 }
 
-.nav-sidebar a {
+.nav-sidebar a,
+.dropdown-menu a,
+.dropdown-menu button,
+.dropdown-menu-nav a {
   transition: none;
 }