LRDOCS-701: Remove liferay-faces.tld dependency from build.xml

I would have sent to Brian directly, but last time I sent him a pr from my liferay-portal repo, he got incompatibility issues and couldn't merge my changes.

The liferay-faces.tld file was permanently deleted during the [LPS-34945](http://issues.liferay.com/browse/LPS-34945) task.

https://issues.liferay.com/browse/LRDOCS-701