src/vs/workbench/contrib/terminal/browser/terminalInstance.ts/TerminalInstance/_removeScrollbar
class TerminalInstance:	private async _removeScrollbar(): Promise<void> {
		if (!this._container || !this._horizontalScrollbar) {
			return;
		}
		this._horizontalScrollbar.getDomNode().remove();
		this._horizontalScrollbar.dispose();
		this._horizontalScrollbar = undefined;
		this._wrapperElement.remove();
		this._wrapperElement.classList.remove('fixed-dims');
		this._container.appendChild(this._wrapperElement);
	}