Remove unused i18n text

resources/lang/en/front-end.yml

@@ -1,13 +1,10 @@
 auth:
-  emptyCaptcha: Empty captcha.
   login: Log In
   loggingIn: Logging In
   tooManyFails:
     captcha: You fails too many times! Please enter the CAPTCHA.
     recaptcha: You fails too many times! Please pass the reCAPTCHA challenge.
   emptyEmail: Empty email address.
-  invalidEmail: Invalid format of email address.
-  emptyConfirmPwd: Empty confirming password.
   invalidConfirmPwd: Confirming password is not equal with password.
   emptyNickname: Empty nickname.
   register: Register
@@ -132,13 +129,8 @@ user:
   setAvatarNotice: The head segment of skin will bu used.
   resetAvatar: Reset Avatar
   resetAvatarConfirm: Are you sure to reset your avatar?
-  emptyNewNickName: Empty new nickname.
   changeNickName: 'Sure to set your nickname to :new_nickname?'
-  emptyPassword: Original password is required.
-  emptyNewPassword: Empty new password.
-  emptyNewEmail: Empty new email address.
   changeEmail: 'Sure to change your email address to :new_email?'
-  emptyDeletePassword: 'Please enter the current password:'
   typeToSearch: Type to search
   useAs: Apply...
   resetSelected: Clear selected

resources/lang/zh_CN/front-end.yml

@@ -1,13 +1,10 @@
 auth:
-  emptyCaptcha: 你还没有填写验证码哦
   login: 登录
   loggingIn: 登录中
   tooManyFails:
     captcha: 你尝试的次数太多啦，请输入验证码
     recaptcha: 你尝试的次数太多啦，请通过 reCAPTCHA 人机验证
   emptyEmail: 你还没有填写邮箱哦
-  invalidEmail: 邮箱格式不正确！
-  emptyConfirmPwd: 确认密码不能为空
   invalidConfirmPwd: 密码和确认的密码不一样诶？
   emptyNickname: 你还没有填写昵称哦
   register: 注册
@@ -132,13 +129,8 @@ user:
   setAvatarNotice: 将会自动截取皮肤头部
   resetAvatar: 重置头像
   resetAvatarConfirm: 确定要重置头像吗？
-  emptyNewNickName: 你还没有填写新昵称啊
   changeNickName: '确定要将昵称设置为 :new_nickname 吗？'
-  emptyPassword: 原密码不能为空
-  emptyNewPassword: 新密码要好好填哦
-  emptyNewEmail: 你还没有填写新邮箱啊
   changeEmail: '确定要将用户邮箱更改为 :new_email 吗？'
-  emptyDeletePassword: 请先输入当前用户密码
   typeToSearch: 输入即搜索
   useAs: 使用...
   resetSelected: 重置已选材质