Remove type assertion for Map import

Author: anglarett

samples/js-api-loader-map/index.ts

@@ -22,7 +22,7 @@ async function initMap(): Promise<void> {
     // [END maps_js_api_loader_map_options]
 
     // Load the Maps library.
-    const { Map } = (await importLibrary('maps')) as google.maps.MapsLibrary;
+    const { Map } = (await importLibrary('maps'));
 
     // Set map options.
     const mapOptions = {
@@ -38,4 +38,4 @@ async function initMap(): Promise<void> {
 }
 
 initMap();
-// [END maps_js_api_loader_map]
+// [END maps_js_api_loader_map]