Revert go-gitea#27870 (go-gitea#27917)

Now that we have go-gitea#27798 we don't need the check from go-gitea#27870 anymore.
With the check it's not possible to remove an inactive auth source from
the user.

routers/web/user/setting/security/security.go

@@ -84,7 +84,7 @@ func loadSecurityData(ctx *context.Context) {
 	// map the provider display name with the AuthSource
 	sources := make(map[*auth_model.Source]string)
 	for _, externalAccount := range accountLinks {
-		if authSource, err := auth_model.GetSourceByID(ctx, externalAccount.LoginSourceID); err == nil && authSource.IsActive {
+		if authSource, err := auth_model.GetSourceByID(ctx, externalAccount.LoginSourceID); err == nil {
 			var providerDisplayName string
 
 			type DisplayNamed interface {