Remove npm postinstall
Remove npm postinstall

NPM postinstall was launching "bower install" leading to an error because
bower.json file is not part of the npm package.

Installing the package using npm should not launch any command. Project is
already compiled. Post install script is now removed.

veo-labs/openveo-player,veo-labs/openveo-player,veo-labs/openveo-player