Align alertview alerts with choiceset alerts

Author: crokita

lib/js/src/manager/screen/utils/AlertView.js

@@ -242,8 +242,6 @@ class AlertView {
     getTimeout () {
         if (this._timeout === AlertView._TIMEOUT_DEFAULT) {
             this._timeout = this.getDefaultTimeout();
-        } else if (this._timeout === AlertView._DEFAULT_TIMEOUT) {
-            return AlertView._DEFAULT_TIMEOUT;
         } else if (this._timeout < AlertView._TIMEOUT_MIN) {
             return AlertView._TIMEOUT_MIN;
         } else if (this._timeout > AlertView._TIMEOUT_MAX) {