message: Remove Ad from regression page
diff: @@ -3,7 +3,6 @@ import { Grid, Typography } from '@material-ui/core';
  import { DatePicker, KeyboardDatePicker } from 'material-ui-pickers';
  import { createRegressionDay as createRegressionDayRenderer } from './RegressionDay';
  import { MuiPickersContext } from 'material-ui-pickers';
  -import Ad from '_shared/Ad';
  import LeftArrowIcon from '@material-ui/icons/KeyboardArrowLeft';
  import RightArrowIcon from '@material-ui/icons/KeyboardArrowRight';
  @@ -30,8 +29,6 @@ function Regression() {
  This page is using for the automate regression of material-ui-pickers.
  </Typography>
  - <Ad />
  -
  <Typography align="center" variant="h4" component="span" gutterBottom>
  DatePicker
  </Typography>
  