Chore: Remove npm list from Travis config
Chore: Remove npm list from Travis config

It fails the build when webpack version doesn’t match pattern in
package.json and npm install shows version anyway.

styleguidist/react-styleguidist,sapegin/react-styleguidist,sapegin/react-styleguidist,styleguidist/react-styleguidist,styleguidist/react-styleguidist,bluetidepro/react-styleguidist