在/portal-master/portal-impl/src/portal.properties文件中，有如下配置：
#
# Input a list of sections that will be included in login form navigation.
#
login.form.navigation.pre=anonymous,sign-in,facebook,open-id
login.form.navigation.post=create-account,forgot-password
修改为：
#
# Input a list of sections that will be included in login form navigation.
#
login.form.navigation.pre=
login.form.navigation.post=