Remove comment that shellArgs parameter of createTerminal does work in Windows

Issue #8429 has been fixed a long time ago.

src/vs/vscode.d.ts

@@ -6599,7 +6599,7 @@ declare module 'vscode' {
 		 *
 		 * @param name Optional human-readable string which will be used to represent the terminal in the UI.
 		 * @param shellPath Optional path to a custom shell executable to be used in the terminal.
-		 * @param shellArgs Optional args for the custom shell executable, this does not work on Windows (see #8429)
+		 * @param shellArgs Optional args for the custom shell executable.
 		 * @return A new Terminal.
 		 */
 		export function createTerminal(name?: string, shellPath?: string, shellArgs?: string[]): Terminal;