Revert bad test for if a select-element should be disabled. setChoice…

…s means even if no choices exist they can be added

src/scripts/choices.ts

@@ -368,9 +368,6 @@ class Choices implements ChoicesInterface {
 
     const shouldDisable =
       (this._isTextElement && !this.config.addItems) ||
-      (this._isSelectElement &&
-        !this.config.addChoices &&
-        this._store.choices.length === 0) ||
       this.passedElement.element.hasAttribute('disabled') ||
       !!this.passedElement.element.closest('fieldset:disabled');