Remove unused CSS file

src/vs/workbench/parts/terminal/electron-browser/media/tabs.css

-/*---------------------------------------------------------------------------------------------
- *  Copyright (c) Microsoft Corporation. All rights reserved.
- *  Licensed under the MIT License. See License.txt in the project root for license information.
- *--------------------------------------------------------------------------------------------*/
-
-.monaco-workbench .panel.integrated-terminal .tabs-outer-container {
-	width: 100%;
-}
-
-.monaco-workbench .panel.integrated-terminal .tabs-container {
-	height: 35px;
-	list-style: none;
-	display: flex;
-	margin: 0;
-	padding: 0;
-	background-color: hsla(0, 0%, 50%, .2);
-}
-
-.monaco-workbench .panel.integrated-terminal .tabs-container::-webkit-scrollbar {
-	display: none;
-}
-
-.monaco-workbench .panel.integrated-terminal .tab {
-	display: flex;
-	width: 120px;
-	min-width: fit-content;
-	white-space: nowrap;
-	cursor: pointer;
-	border-left: 1px solid hsla(0, 0%, 50%, .2);
-	border-top: 1px solid hsla(0, 0%, 50%, .2);
-	box-sizing: border-box;
-	opacity: .7;
-	padding-left: 10px;
-}
-
-.monaco-workbench .panel.integrated-terminal .tab:first-child {
-	border-left: none;
-}
-
-.monaco-workbench .panel.integrated-terminal .tab.active {
-	border-top: none;
-	opacity: 1 !important;
-}
-
-.monaco-workbench .panel.integrated-terminal .tab .tab-label {
-	font-size: 13px;
-	line-height: 35px;
-	white-space: nowrap;
-}
\ No newline at end of file

src/vs/workbench/parts/terminal/electron-browser/terminal.contribution.ts

@@ -4,7 +4,6 @@
  *--------------------------------------------------------------------------------------------*/
 
 import 'vs/css!./media/terminal';
-import 'vs/css!./media/tabs';
 import 'vs/css!./media/xterm';
 import nls = require('vs/nls');
 import {KeyMod, KeyCode} from 'vs/base/common/keyCodes';