Remove jshint from package.json
Remove jshint from package.json

We use grunt-contrib-jshint for jshint.

Change-Id: I83e96471a3253a635107d351fc8f8f2f3d8c6286

wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo