Fix unused variable errors (#18030)

packages/grafana-toolkit/src/cli/tasks/package.build.ts

@@ -3,7 +3,6 @@ import execa = require('execa');
 import * as fs from 'fs';
 // @ts-ignore
 import * as path from 'path';
-import { changeCwdToGrafanaUi, restoreCwd, changeCwdToPackage } from '../utils/cwd';
 import chalk from 'chalk';
 import { useSpinner } from '../utils/useSpinner';
 import { Task, TaskRunner } from './task';

packages/grafana-toolkit/src/cli/tasks/toolkit.build.ts

@@ -1,6 +1,5 @@
 import execa = require('execa');
 import * as fs from 'fs';
-import { restoreCwd, changeCwdToGrafanaToolkit } from '../utils/cwd';
 import chalk from 'chalk';
 import { useSpinner } from '../utils/useSpinner';
 import { Task, TaskRunner } from './task';