feat: 针对 discord 登录配置使用新版设置方案

common/constants.go

@@ -44,7 +44,6 @@ var PasswordLoginEnabled = true
 var PasswordRegisterEnabled = true
 var EmailVerificationEnabled = false
 var GitHubOAuthEnabled = false
-var DiscordOAuthEnabled = false
 var LinuxDOOAuthEnabled = false
 var WeChatAuthEnabled = false
 var TelegramOAuthEnabled = false
@@ -83,8 +82,6 @@ var SMTPToken = ""
 
 var GitHubClientId = ""
 var GitHubClientSecret = ""
-var DiscordClientId = ""
-var DiscordClientSecret = ""
 var LinuxDOClientId = ""
 var LinuxDOClientSecret = ""
 var LinuxDOMinimumTrustLevel = 0