This commit removes the promise extension which added the function `guardedCatch`. It was used to filter server and connection errors from javascript errors. Instead of using guardedCatch, we should use catch and check if the reason is a server or connection error if needed and re-throw the error if it's not handled. closes odoo/odoo#137702 Task: 3439226 Related: odoo/enterprise#48451 Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>