chore: remove unused code

src/main/frontend/diff.cljs

@@ -9,19 +9,6 @@
   (-> ((gobj/get jsdiff "diffLines") s1 s2)
       bean/->clj))
 
-(defn diff-words
-  [s1 s2]
-  (-> ((gobj/get jsdiff "diffWords") s1 s2)
-      bean/->clj))
-
-(defn removed?
-  [s1 s2]
-  (when (and s1 s2)
-    (let [diff-result (diff-words s1 s2)]
-      (->> diff-result
-           (some :removed)
-           (boolean)))))
-
 ;; (find-position "** hello _w_" "hello w")
 (defn find-position
   [markup text]