Remove node-fetch from type

Author: joshmgross

Diff for: types/async-function.d.ts

@@ -5,15 +5,13 @@ import { Context } from '@actions/github/lib/context';
 import { GitHub } from '@actions/github/lib/utils';
 import * as glob from '@actions/glob';
 import * as io from '@actions/io';
-import fetch from 'node-fetch';
 export declare type AsyncFunctionArguments = {
     context: Context;
     core: typeof core;
     github: InstanceType<typeof GitHub>;
     exec: typeof exec;
     glob: typeof glob;
     io: typeof io;
-    fetch: typeof fetch;
     require: NodeRequire;
     __original_require__: NodeRequire;
 };