Minor subs cleanup

src/re_frame/subs.cljc

@@ -36,7 +36,7 @@
   (let [cache-key [query-v dynv]]
     ;; when this reaction is nolonger being used, remove it from the cache
     (add-on-dispose! r #(do (swap! query->reaction dissoc cache-key)
-                            #_(console :log "Removing subscription: " cache-key)))    ;; XXX remove console debug
+                            #_(console :log "Removing subscription: " cache-key)))
     ;; cache this reaction, so it can be used to deduplicate other, later "=" subscriptions
     (swap! query->reaction assoc cache-key r)
     r))  ;; return the actual reaction
@@ -83,9 +83,6 @@
 
 ;; -- Helper code for register-pure -------------------
 
-;; add `metric`  which   (metric :using-cached-subscription  {:text
-;; XXX no need for maps
-
 (defn- map-vals
   "Returns a new version of 'm' in which 'f' has been applied to each value.
   (map-vals inc {:a 4, :b 2}) => {:a 5, :b 3}"