Revert "disabled class on a i.delete.icon selector has no effect"

This reverts commit d09c6dd.

src/Form/Control/Dropdown.php

@@ -201,6 +201,12 @@ protected function renderView(): void
             $this->template->dangerouslySetHtml('multipleClass', 'multiple');
         }
 
+        if ($this->disabled || $this->readOnly) {
+            if ($this->multiple) {
+                $this->jsDropdown(true)->find('a i.delete.icon')->attr('class', 'disabled');
+            }
+        }
+
         if ($this->disabled) {
             $this->template->set('disabledClass', 'disabled');
             $this->template->dangerouslySetHtml('disabled', 'disabled="disabled"');