Remove extraneous hard rejection note (#262)

readme.md

@@ -13,7 +13,6 @@
 - Negates flags when using the `--no-` prefix
 - Outputs version when `--version`
 - Outputs description and supplied help text when `--help`
-- Makes unhandled rejected promises [fail hard](https://github.com/sindresorhus/hard-rejection) instead of the default silent fail
 - Sets the process title to the binary name defined in package.json
 - No dependencies!