Remove unused baseUrl code

src/vs/workbench/contrib/webview/electron-browser/webview-pre.js

@@ -163,10 +163,6 @@
 	};
 
 	document.addEventListener('DOMContentLoaded', () => {
-		ipcRenderer.on('baseUrl', (_event, value) => {
-			initData.baseUrl = value;
-		});
-
 		ipcRenderer.on('styles', (_event, variables, activeTheme) => {
 			initData.styles = variables;
 			initData.activeTheme = activeTheme;
@@ -202,13 +198,6 @@
 				}
 			});
 
-			// set base-url if applicable
-			if (initData.baseUrl && newDocument.head.getElementsByTagName('base').length === 0) {
-				const baseElement = newDocument.createElement('base');
-				baseElement.href = initData.baseUrl;
-				newDocument.head.appendChild(baseElement);
-			}
-
 			// apply default script
 			if (options.allowScripts) {
 				const defaultScript = newDocument.createElement('script');

src/vs/workbench/contrib/webview/electron-browser/webviewElement.ts

@@ -515,10 +515,6 @@ export class WebviewElement extends Disposable implements Webview {
 		});
 	}
 
-	public set baseUrl(value: string) {
-		this._send('baseUrl', value);
-	}
-
 	public focus(): void {
 		this._webview.focus();
 		this._send('focus');