Allow deps.cljs to declare a foreign lib as remote
To be able to provide externs for those kind of libraries there should be a way to declare them as "remote" in deps.cljs.
Patch no longer applies.
js_deps.cljs deliberately only allows upstream foreign-libs (defined in deps.cljs file) to be local file. Yet, this issue is still open, so I (hastily ) assume the local file enforcement was not intentional.
The patch should add back support for using url as foreign-libs in deps.cljs and remove unused codes in load-foreign-library*.