webui: otptoken-adder dialog - remove obsolete comment

- hotp tokens are also supported

Reviewed-By: Nathaniel McCallum <npmccallum@redhat.com>
Reviewed-By: Adam Misnyovszki <amisnyov@redhat.com>

install/ui/src/freeipa/otptoken.js

@@ -284,7 +284,6 @@ otptoken.adder_dialog_preop = function(spec) {
 /**
  * OTP adder dialog
  *
- * - otp-add requires 'type' to be set. At the moment IPA supports only 'totp'
  * @class
  * @extends IPA.entity_adder_dialog
  */