removing safari because I can't get it to run in sauce with zuul

Author: mreinstein

.travis.yml

@@ -18,7 +18,5 @@ jobs:
     env: BROWSER_NAME=chrome BROWSER_VERSION=latest
   - node_js: '8'
     env: BROWSER_NAME=firefox BROWSER_VERSION=latest
-  - node_js: '8'
-    env: BROWSER_NAME=safari BROWSER_VERSION=7
   - node_js: '8'
     env: BROWSER_NAME=ie BROWSER_VERSION=11