Drop obsolete Travis CI badge from README

README.md

@@ -1,4 +1,4 @@
-# YAML <a href="https://www.npmjs.com/package/yaml"><img align="right" src="https://badge.fury.io/js/yaml.svg" title="npm package" /></a><a href="https://travis-ci.org/eemeli/yaml"><img align="right" src="https://travis-ci.org/eemeli/yaml.svg?branch=master" title="Build status" /></a>
+# YAML <a href="https://www.npmjs.com/package/yaml"><img align="right" src="https://badge.fury.io/js/yaml.svg" title="npm package" /></a>
 
 `yaml` is a JavaScript parser and stringifier for [YAML](http://yaml.org/), a human friendly data serialization standard. It supports both parsing and stringifying data using all versions of YAML, along with all common data schemas. As a particularly distinguishing feature, `yaml` fully supports reading and writing comments and blank lines in YAML documents.