docs: arrayBufferToString not needed on upload example (#720)

Author: Bruno Barbieri

examples/upload-file-via-browser/src/App.js

@@ -13,7 +13,6 @@ class App extends React.Component {
     // bind methods
     this.captureFile = this.captureFile.bind(this)
     this.saveToIpfs = this.saveToIpfs.bind(this)
-    this.arrayBufferToString = this.arrayBufferToString.bind(this)
     this.handleSubmit = this.handleSubmit.bind(this)
   }
 
@@ -40,10 +39,6 @@ class App extends React.Component {
       })
   }
 
-  arrayBufferToString (arrayBuffer) {
-    return String.fromCharCode.apply(null, new Uint16Array(arrayBuffer))
-  }
-
   handleSubmit (event) {
     event.preventDefault()
   }