hide navbar when only 1 sign-in method is available (#2648)

Author: kaz

templates/user/auth/signin_navbar.tmpl

@@ -1,11 +1,11 @@
+{{if .EnableOpenIDSignIn}}
 <div class="ui secondary pointing tabular top attached borderless menu stackable new-menu navbar">
 	<a class="{{if .PageIsLogin}}active{{end}} item" href="{{AppSubUrl}}/user/login">
 		{{.i18n.Tr "auth.login_userpass"}}
 	</a>
-	{{if .EnableOpenIDSignIn}}
-		<a class="{{if .PageIsLoginOpenID}}active{{end}} item" href="{{AppSubUrl}}/user/login/openid">
-			<i class="fa fa-openid"></i>
-			&nbsp;OpenID
-		</a>
-	{{end}}
+	<a class="{{if .PageIsLoginOpenID}}active{{end}} item" href="{{AppSubUrl}}/user/login/openid">
+		<i class="fa fa-openid"></i>
+		&nbsp;OpenID
+	</a>
 </div>
+{{end}}