Solution:
Navigate to Quark Publishing Platform\Server\webapps\workspace\js\user-home-ui.js and disable the following entries by adding /* in the beginning and */ at the end of the code.
{
id: 'change-pswd-menu-item',
text : changePwd_Label,
handler : UserHomeUI.genericHandler,
scriptSrc: WEB_APP_CONTEXT_NAME + '/js/changePwd.js',
callback: 'ChangePassword.showDialog'
{