This extension can remove a list of URLs from Bing via Bing Webmaster Tools with one click. You don't need to copy and paste individual URL manually and click on the remove button one at a time. Instead, create a CSV file with all your to-be-removed URLs in it, \"upload it\", and click on remove.
To learn more about the expected CSV format, please refer to the CSV Format section on https://github.com/noitcudni/bing-webmaster-bulk-url-removal/#csv-format.
Click on the the blue trash can icon to upload your CSV file to kick off a bulk removal job.