CB-14145 drop open & other deps for broken btest

resolves some npm audit issues
diff --git a/package.json b/package.json
index 3e486fb..d5b9596 100644
--- a/package.json
+++ b/package.json
@@ -68,7 +68,6 @@
     }
   ],
   "devDependencies": {
-    "connect": "^3.5.0",
     "eslint": "^4.7.2",
     "eslint-config-semistandard": "^11.0.0",
     "eslint-config-standard": "^10.2.1",
@@ -81,8 +80,7 @@
     "istanbul": "^0.4.5",
     "jasmine-node": "1.14.5",
     "jsdom-no-contextify": "^3.1.0",
-    "mkdirp": "^0.5.0",
-    "open": "0.0.5"
+    "mkdirp": "^0.5.0"
   },
   "dependencies": {
     "browserify": "14.4.0"