.npmignore in bourbon-5.1.0 vs .npmignore in bourbon-6.0.0

@@ -2,14 +2,13 @@
 .github/
 .gitignore
 .hound.yml
 .ruby-version
 .sass-cache
-.scss-lint.yml
+.stylelintrc.json
 _site
 bin/
 bourbon.gemspec
-bower.json
 CODE_OF_CONDUCT.md
 CONTRIBUTING.md
 features/
 Gemfile
 Gemfile.lock