Using WidgetInflater in loader task

This removes duplicate logic for widget inflation.
Since the widget inflation can now happen during loader,
the restore logging can also be moved completely to the loader

Bug: 318539160
Test: atest TaplBinderTests
Flag: None
Change-Id: If9f336e7bf49ee7df121d7d9852b674d98124895

src_plugins/com/android/systemui/plugins/CustomWidgetPlugin.java

@@ -39,13 +39,16 @@ public interface CustomWidgetPlugin extends Plugin {
 
     /**
      * Get the UUID for the custom widget.
+     *
+     * @deprecated Not used
      */
-    String getId();
+    @Deprecated
+    default String getId() {
+        return "";
+    }
 
     /**
      * Used to modify a widgets' info.
      */
-    default void updateWidgetInfo(AppWidgetProviderInfo info, Context context) {
-
-    }
+    default void updateWidgetInfo(AppWidgetProviderInfo info, Context context) { }
 }