Make the linter happy

packages/file-handling/src/dbp-file-handling-lit-element.js

@@ -66,7 +66,7 @@ export default class DbpFileHandlingLitElement extends ScopedElementsMixin(DBPLi
     handleScrollLeft(element) {
         const minwidth = 0;
         let container = element;
-        let scrollAmount = element.scrollWidth - element.clientWidth;;
+        let scrollAmount = element.scrollWidth - element.clientWidth;
         let slideTimer = setInterval(function(){
             container.scrollLeft -= 10;
             scrollAmount -= 10;

packages/file-handling/src/file-sink.js

 import {createInstance} from './i18n';
 import {css, html} from 'lit-element';
 import {ScopedElementsMixin} from '@open-wc/scoped-elements';
-import DBPLitElement from '@dbp-toolkit/common/dbp-lit-element';
 import * as commonUtils from "@dbp-toolkit/common/utils";
 import {Icon, MiniSpinner} from '@dbp-toolkit/common';
 import * as commonStyles from '@dbp-toolkit/common/styles';

packages/file-handling/src/file-source.js

 import {createInstance} from './i18n';
 import {css, html} from 'lit-element';
 import {ScopedElementsMixin} from '@open-wc/scoped-elements';
-import DBPLitElement from '@dbp-toolkit/common/dbp-lit-element';
 import * as commonUtils from "@dbp-toolkit/common/utils";
 import {Icon, MiniSpinner} from '@dbp-toolkit/common';
 import {send as notify} from '@dbp-toolkit/common/notification';