Remove duplicated var customer.name from email template

Author: ptylek

app/code/Magento/Customer/view/frontend/email/password_reset.html

@@ -6,7 +6,6 @@
 -->
 <!--@subject {{trans "Your %store_name password has been changed" store_name=$store.frontend_name}} @-->
 <!--@vars {
-"var customer.name":"Customer Name",
 "var store.frontend_name":"Store Name",
 "var store_email":"Store Email",
 "var store_phone":"Store Phone",