title: best / quick way to remove character from string at a given index (swift 4)
body: <p>I'm trying to remove the third character from a string. however, there does not seem to be a clean way to do this. I couldn't find an extension that does this and using a library is a bit overkill</p>
  
  <p>I probably could take the first start range up to this character, then the last range and concatenating these together feels quite wrong and there must be a better way IMO</p>
  
  <p>Any help is appreciated!, Thanks!</p>