optimize splitList() function with splice() function

lib/util.js

@@ -101,20 +101,14 @@ class Util {
    * Splits a list into a list of lists each with maximum length LIMIT
    */
   static splitList(list, limit) {
-    if (list.length <= limit) {
+    if (list.length <= limit)
       return [list]
-    } else {
-      const lists = []
-      // How many lists to create?
-      const count = Math.ceil(list.length / limit)
-      // How many elements per list (max)?
-      const els = Math.ceil(list.length / count)
-
-      for (let i=0; i < count; i++) {
-        lists.push(list.slice(i * els, (i+1) * els))
-      }
-      return lists
+
+    const lists = []
+    while (list.length) {
+      lists.push(list.splice(0, limit))
     }
+    return lists
   }
 
   /**