Removed icons from README.

Author: mattmezza

README.md

@@ -69,33 +69,10 @@ Vue.use(Chat)
 </template>
 ```
 ```javascript
-import CloseIcon from 'vue-beautiful-chat/src/assets/close-icon.png'
-import OpenIcon from 'vue-beautiful-chat/src/assets/logo-no-bg.svg'
-import FileIcon from 'vue-beautiful-chat/src/assets/file.svg'
-import CloseIconSvg from 'vue-beautiful-chat/src/assets/close.svg'
-
 export default {
   name: 'app',
   data() {
     return {
-      icons:{
-        open:{
-          img: OpenIcon,
-          name: 'default',
-        },
-        close:{
-          img: CloseIcon,
-          name: 'default',
-        },
-        file:{
-          img: FileIcon,
-          name: 'default',
-        },
-        closeSvg:{
-          img: CloseIconSvg,
-          name: 'default',
-        },
-      },
       participants: [
         {
           id: 'user1',