chore: remove outdated type comment (#5103)

packages/runtime-core/src/apiCreateApp.ts

@@ -345,9 +345,8 @@ export function createAppAPI<HostElement>(
               `It will be overwritten with the new value.`
           )
         }
-        // TypeScript doesn't allow symbols as index type
+
-        // https://github.com/Microsoft/TypeScript/issues/24587
+        context.provides[key as string | symbol] = value
-        context.provides[key as string] = value
 
         return app
       }