[Client] Drop apiViaStream option

Resolve #3911

src/client/app/common/views/components/signin.vue

@@ -72,7 +72,7 @@ export default Vue.extend({
 				username: this.username,
 				password: this.password,
 				token: this.user && this.user.twoFactorEnabled ? this.token : undefined
-			}, true).then(res => {
+			}).then(res => {
 				localStorage.setItem('i', res.i);
 				location.reload();
 			}).catch(() => {