Removes leftover 'use strict's

src/views/nodes/UncommittedFilesNode.ts

@@ -1,4 +1,3 @@
-'use strict';
 import { ThemeIcon, TreeItem, TreeItemCollapsibleState } from 'vscode';
 import { ViewFilesLayout } from '../../config';
 import { GitUri } from '../../git/gitUri';

src/webviews/apps/plus/timeline/chart.ts

@@ -1,4 +1,3 @@
-'use strict';
 /*global*/
 import type { Chart, ChartOptions, ChartTypes, DataItem } from 'billboard.js';
 import { bar, bb, bubble, zoom } from 'billboard.js';