Revert "Bump chai-http from 4.0.0 to 4.2.0"

This reverts commit fc1f73d.

Author: krubenok

package-lock.json

@@ -41,7 +41,7 @@
     "@types/mongoose": "^5.0.13",
     "@types/multer": "^1.3.7",
     "apidoc": "^0.17.6",
-    "chai-http": "^4.2.0",
+    "chai-http": "^4.0.0",
     "chai": "^4.1.2",
     "jshint": "^2.9.6",
     "jslint": "^0.12.0",