Delete empty Qunit setups

qunit-setup.js

/* eslint-env node */

/*
BEFORE
moduleForAcceptance('test', {
  beforeEach() {},
  afterEach() {},
});

AFTER
moduleForAcceptance('test');
*/
export default function(file, api, options) {
  let j = api.jscodeshift;

  let printOptions = options.printOptions || { quote: 'single' };
  let root = j(file.source);
  
  let moduleFor = {
    type: 'CallExpression',
    callee: {
      type: 'Identifier',
      name: 'moduleForAcceptance',
    },
  };


  root.find(j.CallExpression, moduleFor)
    .forEach(p => {
      let args = p.value.arguments;
      let objectExpression = args.find(p => p.type === 'ObjectExpression');
      let updatedObjectExpression = objectExpression.properties.filter(o => {
        return !/^(before|after)Each$/.test(o.key.name) ||
          (o.value.type === 'FunctionExpression' &&
           o.value.body.body.length);
      });
      let newArgs = updatedObjectExpression.length ? [args[0], j.objectExpression(updatedObjectExpression)] : [args[0]];
      p.replace(
        j.callExpression(
          j.identifier(p.value.callee.name),
          newArgs
        )
      );
    });

  return root.toSource(printOptions);
}