The else is unnecessary since all callpaths past the if-check apply to the same condition. It's a minor code-style difference, but introducing else clauses where they are unnecessary forces decision making later on (when the code may have become more complex).

Contrived example:

if (blah) {
  // stuff
}
// other stuff
// * new stuff goes here unless it explicitly relates to *blah*

if (blah) {
  // stuff
} else {
  // other stuff
  // * add new stuff here?
}
// * or here?