Fixed index issue and unused host var

src/plugins/GoogleDrive.js

@@ -38,8 +38,6 @@ export default class Google extends Plugin {
 
     // merge default options with the ones set by user
     this.opts = Object.assign({}, defaultOptions, opts)
-
-    const host = this.opts.host.replace(/^https?:\/\//, '')
   }
 
   install () {

src/plugins/index.js

@@ -31,7 +31,6 @@ module.exports = {
   Spinner,
   Present,
   DragDrop,
-  Dropbox,
   GoogleDrive,
   Formtag,
   Tus10,