feat(04): use const instead of var in solution (TheOdinProject#456)

Author: nik-rev

04_removeFromArray/solution/removeFromArray-solution.js

@@ -20,7 +20,7 @@ const removeFromArray = function (array, ...args) {
 // A simpler, but more advanced way to do it is to use the 'filter' function,
 // which basically does what we did with the forEach above.
 
-// var removeFromArray = function(array, ...args) {
+// const removeFromArray = function(array, ...args) {
 //   return array.filter(val => !args.includes(val))
 // }
 //