remove travis file from reveal directory
diff --git a/inst/reveal.js-3.3.0/.travis.yml b/inst/reveal.js-3.3.0/.travis.yml
deleted file mode 100644
index 264c6ec..0000000
--- a/inst/reveal.js-3.3.0/.travis.yml
+++ /dev/null
@@ -1,5 +0,0 @@
-language: node_js
-node_js:
-  - 4.1.1
-before_script:
-  - npm install -g grunt-cli
\ No newline at end of file