revert: refactor: allow ES import for cloud string if package type is module

This reverts commit 0225340ccb.

spec/CloudCode.spec.js

@@ -39,14 +39,6 @@ describe('Cloud Code', () => {
     });
   });
 
-  it('can load cloud code as a module', async () => {
-    process.env.npm_package_type = 'module';
-    await reconfigureServer({ cloud: './spec/cloud/cloudCodeModuleFile.js' });
-    const result = await Parse.Cloud.run('cloudCodeInFile');
-    expect(result).toEqual('It is possible to define cloud code in a file.');
-    delete process.env.npm_package_type;
-  });
-
   it('can create functions', done => {
     Parse.Cloud.define('hello', () => {
       return 'Hello world!';