test: update schematics API golden file

Author: alan-agius4

goldens/public-api/angular_devkit/schematics/tasks/index.md

@@ -4,8 +4,6 @@
 
 ```ts
 
-/// <reference types="node" />
-
 // @public (undocumented)
 export class NodePackageInstallTask implements TaskConfigurationGenerator<NodePackageTaskOptions> {
     constructor(workingDirectory?: string);