The Encoder's new SetEscapeHTML method controls whether the &, <, and > characters in quoted strings should be escaped as \u0026, \u003c, and \u003e, respectively. As in previous releases, the encoder defaults to applying this escaping, to avoid certain problems that can arise when embedding JSON in HTML.
Remove the workaround used when older golang versions didn't have this.
https://golang.org/doc/go1.7#encoding_json
Remove the workaround used when older golang versions didn't have this.