Revert "Add go-options" (#1161)

README.md

@@ -178,7 +178,6 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
 * [envconf](https://github.com/ian-kent/envconf) - Configuration from environment
 * [envconfig](https://github.com/vrischmann/envconfig) - Read your configuration from environment variables.
 * [gcfg](https://github.com/go-gcfg/gcfg) - read INI-style configuration files into Go structs; supports user-defined types and subsections
-* [go-options](https://github.com/kataras/go-options) - Clean APIs for your Go Applications
 * [gofigure](https://github.com/ian-kent/gofigure) - Go application configuration made easy
 * [hjson](https://github.com/hjson/hjson-go) - Human JSON, a configuration file format for humans. Relaxed syntax, fewer mistakes, more comments.
 * [ingo](https://github.com/schachmat/ingo) - Flags persisted in an ini-like config file