Remove checks made redundant by CLJS-2040

Question

CLJS-2040 added a check to see if we have analyzer metadata for a given ns. The old checks are still in there but would also be covered by the new check. We should probably remove them.

https://github.com/clojure/clojurescript/commit/77e01a01af9f45c76cfa34aa67bfae154b075544#diff-55b85385d2d0bfb6dc20d59ed982d5c8R953

Answer 1

Reference: https://clojure.atlassian.net/browse/CLJS-2043 (reported by thheller)