CLJS-2981: Mishandling of :npm-deps Boolean value computing upstream deps

revert https://dev.clojure.org/jira/browse/CLJS-2904, :install-deps
controls installation, no need for a flag on :npm-deps

Author: swannodette

src/main/clojure/cljs/closure.clj

@@ -2446,9 +2446,6 @@
       (not (contains? opts :aot-cache))
       (assoc :aot-cache false)
 
-      (not (contains? opts :npm-deps))
-      (assoc :npm-deps false)
-
       (contains? opts :modules)
       (ensure-module-opts)