Remove redundant code.

src/SyncGate.tsx

@@ -8,8 +8,6 @@ import { Route, Switch, Redirect, useHistory } from "react-router";
 import moment from "moment";
 import "moment/locale/en-gb";
 
-import { Map } from "immutable";
-
 import { routeResolver } from "./App";
 
 import AppBarOverride from "./widgets/AppBarOverride";
@@ -30,9 +28,6 @@ import { performSync } from "./store/actions";
 import { useCredentials } from "./credentials";
 import PimNavigationTabs from "./Pim/NavigationTabs";
 
-export type SyncInfoJournal = any;
-export type SyncInfo = Map<string, SyncInfoJournal>;
-
 export default function SyncGate() {
   const etebase = useCredentials();
   const settings = useSelector((state: StoreState) => state.settings);