fix: rm devtools from test (#95)

Author: lancemccluskey

rollup/writeCjsEntryFile.js

@@ -13,7 +13,7 @@ function writeCjsEntryFile(
   const contents = `
 'use strict'
 
-if (process.env.NODE_ENV === 'production') {
+if (process.env.NODE_ENV !== 'development') {
   module.exports = {
     DevTool: () => null,
   };