Fixes microsoft#210459 (microsoft#211143)

* Fixes microsoft#210459

* Fixes CI

Author: hediet

src/vs/editor/browser/widget/diffEditor/diffEditorWidget.ts

@@ -2,7 +2,7 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
-import { $, getWindow, h } from 'vs/base/browser/dom';
+import { getWindow, h } from 'vs/base/browser/dom';
 import { IBoundarySashes } from 'vs/base/browser/ui/sash/sash';
 import { findLast } from 'vs/base/common/arraysFind';
 import { onUnexpectedError } from 'vs/base/common/errors';
@@ -21,6 +21,7 @@ import { AccessibleDiffViewer, AccessibleDiffViewerModelFromEditors } from 'vs/e
 import { DiffEditorDecorations } from 'vs/editor/browser/widget/diffEditor/components/diffEditorDecorations';
 import { DiffEditorSash } from 'vs/editor/browser/widget/diffEditor/components/diffEditorSash';
 import { DiffEditorViewZones } from 'vs/editor/browser/widget/diffEditor/components/diffEditorViewZones/diffEditorViewZones';
+import { DiffEditorGutter } from 'vs/editor/browser/widget/diffEditor/features/gutterFeature';
 import { HideUnchangedRegionsFeature } from 'vs/editor/browser/widget/diffEditor/features/hideUnchangedRegionsFeature';
 import { MovedBlocksLinesFeature } from 'vs/editor/browser/widget/diffEditor/features/movedBlocksLinesFeature';
 import { OverviewRulerFeature } from 'vs/editor/browser/widget/diffEditor/features/overviewRulerFeature';
@@ -45,7 +46,6 @@ import { DiffEditorEditors } from './components/diffEditorEditors';
 import { DelegatingEditor } from './delegatingEditorImpl';
 import { DiffEditorOptions } from './diffEditorOptions';
 import { DiffEditorViewModel, DiffMapping, DiffState } from './diffEditorViewModel';
-import { DiffEditorGutter } from 'vs/editor/browser/widget/diffEditor/features/gutterFeature';
 
 export interface IDiffCodeEditorWidgetOptions {
 	originalEditor?: ICodeEditorWidgetOptions;
@@ -56,7 +56,6 @@ export class DiffEditorWidget extends DelegatingEditor implements IDiffEditor {
 	public static ENTIRE_DIFF_OVERVIEW_WIDTH = OverviewRulerFeature.ENTIRE_DIFF_OVERVIEW_WIDTH;
 
 	private readonly elements = h('div.monaco-diff-editor.side-by-side', { style: { position: 'relative', height: '100%' } }, [
-		h('div.noModificationsOverlay@overlay', { style: { position: 'absolute', height: '100%', visibility: 'hidden', } }, [$('span', {}, 'No Changes')]),
 		h('div.editor.original@original', { style: { position: 'absolute', height: '100%', } }),
 		h('div.editor.modified@modified', { style: { position: 'absolute', height: '100%', } }),
 		h('div.accessibleDiffViewer@accessibleDiffViewer', { style: { position: 'absolute', height: '100%' } }),
@@ -293,17 +292,9 @@ export class DiffEditorWidget extends DelegatingEditor implements IDiffEditor {
 			this._movedBlocksLinesPart.set(value, undefined);
 		});
 
-		this._register(applyStyle(this.elements.overlay, {
-			width: this._layoutInfo.map((i, r) => i.originalEditor.width + (this._options.renderSideBySide.read(r) ? 0 : i.modifiedEditor.width)),
-			visibility: derived(reader => /** @description visibility */(this._options.hideUnchangedRegions.read(reader) && this._diffModel.read(reader)?.diff.read(reader)?.mappings.length === 0)
-				? 'visible' : 'hidden'
-			),
-		}));
-
 		this._register(Event.runAndSubscribe(this._editors.modified.onDidChangeCursorPosition, e => this._handleCursorPositionChange(e, true)));
 		this._register(Event.runAndSubscribe(this._editors.original.onDidChangeCursorPosition, e => this._handleCursorPositionChange(e, false)));
 
-
 		const isInitializingDiff = this._diffModel.map(this, (m, reader) => {
 			/** @isInitializingDiff isDiffUpToDate */
 			if (!m) { return undefined; }